WO2011022893A1 - 一种资源接纳控制系统间的交互方法和装置 - Google Patents

一种资源接纳控制系统间的交互方法和装置 Download PDF

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Publication number
WO2011022893A1
WO2011022893A1 PCT/CN2009/074524 CN2009074524W WO2011022893A1 WO 2011022893 A1 WO2011022893 A1 WO 2011022893A1 CN 2009074524 W CN2009074524 W CN 2009074524W WO 2011022893 A1 WO2011022893 A1 WO 2011022893A1
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Prior art keywords
resource
admission control
control system
fixed network
network
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PCT/CN2009/074524
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English (en)
French (fr)
Inventor
尤建洁
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/260,215 priority Critical patent/US8811236B2/en
Priority to EP09848625.1A priority patent/EP2472794B1/en
Publication of WO2011022893A1 publication Critical patent/WO2011022893A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • 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
    • 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
    • H04L47/78—Architectures of resource allocation
    • H04L47/782—Hierarchical allocation of resources, e.g. involving a hierarchy of local and centralised entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H04W12/084—Access security using delegated authorisation, e.g. open authorisation [OAuth] protocol
    • 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

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for interacting between resource admission control systems.
  • NGN Network Generation Network
  • IP packet technology
  • NGN can provide richer multimedia services, such as emerging services with real-time requirements (such as VoIP, video conferencing, multimedia distance learning, video on demand, etc.), which require communication networks to provide efficient end-to-end quality of service (Quality of Service). , QoS) support; At the same time, users have higher and higher requirements for network service quality. Therefore, how to provide end-to-end QoS will be one of the core issues of NGN.
  • the Union-Telecommunications standardization sector (ITU-T) is the telecommunications division of the International Telecommunication Union (ITU), which sets standards for resource admission control.
  • ITU-T International Telecommunication Union
  • RCF Resource and Admission Control Functions
  • the functional framework of the RACF is provided. As shown in Figure 1, the RACF consists of two parts, namely the policy decision function. Policy Decision Functional Entity (PD-FE) and Transport Resource Control Functional Entity (TRC-FE), where TRC-FE interacts with the transport function through Rc and performs functions through Rn and transport resources.
  • PD-FE Policy Decision Functional Entity
  • TRC-FE Transport Resource Control Functional Entity
  • the Transport Resource Enforcement Functional Entity (TRE-FE for short) interaction and the PD-FE interacts with the TRC-FE through Rt, interacts with the Customer Premises Network (CPN) through the Rh, and passes the Rw and the policy.
  • the Policy Enforcement Functional Entity (PE-FE) interaction interacts with the Business Layer's Service Control Functions (SCF) through Rs, and through the Network Attachment Control Functions (Russ). Referred to as NACF) interaction, and PD-FE Interact with other next-generation networks through the Ri interface.
  • SCF Business Layer's Service Control Functions
  • Russ Network Attachment Control Functions
  • the PD-FE is independent of the transmission technology and has nothing to do with the SCF.
  • the PD-FE is based on the network policy rules, the service information provided by the SCF, the transport layer subscription information provided by the NACF, and the resource availability decision result provided by the TRC-FE. The final decision on resource acceptance control.
  • TRC-FE is not related to the business, but is related to transmission technology.
  • the TRC-FE is responsible for collecting and maintaining transport network information and resource status information.
  • the TRC-FE Upon receiving a resource request from the PD-FE, the TRC-FE performs resource-based admission control based on QoS, priority requirements, resource availability information, and transport-related policy rules.
  • the transport layer consists of the Policy Enforcement Function Entity PE-FE and the Transport Resource Execution Function Entity TRE-FE.
  • the PE-FE performs the policy rule delivered by the PD-FE.
  • the PE-FE is a packet-to-packet gateway. It can be located between the CPN and the access network of the customer premises network and between the access network and the core network. Or between different carrier networks, it is a key node that supports dynamic QoS control, port address translation control, and Network Address Translator (NAT) traversal.
  • the TRE-FE implements the transmission resource policy rule delivered by the TRC-FE. Its scope and function and the Rn interface need to be further studied, which is not in the scope of the R2 phase.
  • TISPAN Telecommunication and Internet converged Services and Protocols for Advanced Networking, services and protocols for advanced network communication and Internet convergence
  • RACS Resource and Admission Control Subsystem
  • TISPAN divides the NGN architecture into a service layer and a transport layer, and introduces RACS and NASS (Network Attachment Subsystem) in the transport control layer.
  • RACS solves the QoS problem of the NGN bearer network, while NASS is responsible for providing the upper layer service layer. Independent user access management.
  • the main functions of the TISPAN RACS are similar to those of the ITU-T RACF.
  • RACS is one of the NGN components. It associates the resource requirements of the service layer (such as IMS) with the resource allocation of the network bearer layer, and mainly performs functions such as policy control, resource reservation, admission control, and NAT traversal.
  • the RACS provides a transport layer control service for the application function (AF) through a series of QoS policies, so that the user equipment (User Equipment, UE) can obtain the service with the required QoS guarantee.
  • AF application function
  • UE User Equipment
  • the RACS consists of two entities: SPDF (Service-based Policy Decision Function, Service-based policy decision function) and A-RACF (Access-Resource and Admission Control Function), where:
  • SPDF provides a unified interface to application functions, shields the underlying network topology and specific access types, and provides business-based policy control. SPDF selects the local policy according to the request of the application function AF, and maps the request into QoS parameters, and sends it to A-RACF and BGF (Border Gateway Function) to control the corresponding resources.
  • A-RACF Order Gateway Function
  • A-RACF the control access network, has the function of admission control and network policy aggregation.
  • the request is received from the SPDF, and admission control is then implemented based on the access network policy, accepting or rejecting requests for transmission resources.
  • A-RACF obtains network attachment information and user QoS list information from the Network Attachment Subsystem (NASS) through the e4 interface, so that available network resources can be determined according to network location information (such as the address of the physical node of the access user), and processed at the same time.
  • NSS Network Attachment Subsystem
  • the transport layer contains two functional entities: BGF (Border Gateway Function) and RCEF (Resource Control Enforcement Function), where:
  • BGF is a packet-to-packet gateway that can be located between the access network and the core network (implementing the core border gateway function) or between the two core networks (implementing the interconnect border gateway function).
  • the BGF performs NAT traversal, gating, QoS marking, bandwidth throttling, usage measurement, and resource synchronization under the control of SPDF.
  • RCEF implements the Layer 2/Layer 3 (L2/L3) media streaming policy transmitted by A-RACF through the Re interface, and performs functions such as gating, QoS marking, and bandwidth limitation.
  • L2/L3 Layer 2/Layer 3
  • PCC Policy Control and Charging
  • the PCC is located between the service control layer and the access/bearer layer. It implements a certain QoS control mechanism for the characteristics of the mobile access network.
  • the main functions provided are: policy control based on user-defined information, and billing based on service data flow. control.
  • the functional architecture diagram of the 3GPP PCC is shown in Figure 3.
  • the Policy and Charging Rule Function includes policy control decisions and per-flow charging control functions.
  • the PCRF provides network control functions for the detection, gating, QoS, and per-flow charging (except credit management) of the service data flow for the PCEF (Policy and Charging Enforcement Function).
  • PCEF includes service data flow detection, policy enforcement, and per-flow billing. This functional entity is located at the gateway (GW).
  • the PCEF provides service data flow detection, user plane traffic processing, trigger control plane session management, QoS enforcement, traffic data flow measurement, and interaction with the billing system.
  • SPR Subscribescription Profile Repository
  • OCS and OFCS are respectively an online charging system and an offline charging system, wherein in the OCS, a mobile network enhanced custom application logical service control point (CAMEL SCP) and a service data flow based credit control (Service Data Flow Based Credit Control) are included. .
  • CAMEL SCP mobile network enhanced custom application logical service control point
  • service data flow based credit control Service Data Flow Based Credit Control
  • the mobile network does not guarantee the bandwidth of the multimedia service as the wireless LAN such as the fixed network or the WIFI, and the MBMS (Multimedia Broadcast/Multicast Service) and the Packet-switched Streaming Service (PSS) in the mobile network.
  • the services provided are not as rich as IPTV services, so mobile users can consider accessing IPTV services at home.
  • fixed networks referred to as fixed networks
  • mobile networks are deployed with their own resource control systems and service functions, when mobile users (dual-mode mobile terminals) access and access IPTV services in fixed networks through fixed networks, QoS support, the resource admission control function entity RACF/RACS in the fixed network needs to interact with the policy and charging rule function PCRF in the mobile network.
  • FIG. 4 The networking scheme is shown in Figure 4, and the PCRF is connected to the mobile user information base.
  • Figure 5 further shows the interaction diagram between RACF/RACS and PCC.
  • RACF/RACS and PCC are connected through interface S9, which is mainly used for information exchange between RACF/RACS and PCC.
  • the functions supported by RACF, RACS, and PCC in the prior art cannot guarantee the service experience of users in the scenario shown in Figure 4/ Figure 5, because the RACF, RACS, and PCC are very different in terms of the architecture, the network range, and the types of nodes involved. quality. Solving the problem that the RACF, RACS, and PCC cannot work together/interact in the prior art is an urgent problem to be solved.
  • the present invention provides a method and apparatus for interacting between resource admission control systems to implement resource admission control for mobile users to access and access fixed network services on the fixed network side.
  • the present invention provides a method for interacting between resource admission control systems, which is applied to a case where a mobile user terminal accesses a network on a fixed network side and performs a service in a fixed network, including:
  • the resource admission control system of the fixed network receives the resource request sent by the application function of the fixed network, performs an authorization check on the resource request, and interacts with the resource admission control system of the mobile network to enable the resource admission control system of the mobile network to The resource request performs an authorization check. If the authorization check passes, the resource admission control system of the fixed network formulates a final policy rule, and returns a resource response to the application function of the fixed network.
  • the above interaction method may also have the following features:
  • the resource admission control system of the fixed network performs an authorization check on the resource request according to local operator policy rules and resource availability.
  • the above interaction method may also have the following features:
  • the resource admission control system of the mobile network performs authorization check on the resource request according to local operator policy rules and user subscription information.
  • the foregoing interaction method further includes:
  • the resource admission control system of the mobile network formulates an initial policy rule for the resource request, and sends the initial policy rule to the resource admission control system of the fixed network.
  • the above interaction method may also have the following features:
  • the resource admission control system of the mobile network formulates an initial policy rule for the resource request according to the user subscription information, the local operator policy, and the service information.
  • the above interaction method may also have the following features:
  • the resource admission control system of the fixed network formulates a final policy rule based on the initial policy rules, local operator policy rules, and resource availability.
  • the foregoing interaction method further includes:
  • the resource admission control system of the fixed network informs the transmission function entity of the fixed network to install the final policy rule.
  • the resource admission control system of the fixed network and the resource admission control system of the mobile network pass
  • the S9' interface performs information interaction, and the resource admission control system of the fixed network or the resource admission control system of the mobile network or both jointly complete matching and conversion of the required interactive message format or parameter form, so that the information from the other party can Correctly identified.
  • the above interaction method may also have the following features:
  • the application function of the fixed network is the Service Control Function (SCF), and the resource admission control system of the fixed network is the Resource Admission Control Function (RACF);
  • SCF Service Control Function
  • RAF Resource Admission Control Function
  • the application function of the fixed network is an application function (AF)
  • the resource admission control system of the fixed network is a resource admission control subsystem (RAC);
  • the resource admission control system of the mobile network is a Policy and Charging Rules Function (PCRF). Further, the above interaction method may also have the following features:
  • the resource request is a resource initialization request
  • the method specifically includes the following steps: after receiving the resource initialization request message of the fixed network, the resource admission control system of the fixed network performs an authorization check on the resource initialization request message, if After the authorization check is passed, the resource initialization request message is sent to the resource admission control system of the mobile network;
  • the resource admission control system of the mobile network performs an authorization check on the resource initialization request message, and if the authorization check passes, formulates an initial policy rule for the resource initialization request message, and returns the resource admission control system to the fixed network. a resource initialization response message, where the initial policy rule is carried;
  • the resource admission control system of the fixed network formulates a final policy rule, informing the transport function entity of the fixed network to install the final policy rule, and returning a resource initial ⁇ response message to the application function of the fixed network.
  • the above interaction method may also have the following features:
  • the resource request is a resource modification request, and the method specifically includes the following steps:
  • the resource admission control system of the fixed network After receiving the resource modification request message by the application function of the fixed network, the resource admission control system of the fixed network performs an authorization check on the resource modification request message, and if the authorization check passes, Sending the resource modification request message to the resource admission control system of the mobile network; the resource admission control system of the mobile network performs an authorization check on the resource modification request message, and if the authorization check passes, the resource modification request message is sent And formulating an initial policy rule, and returning a resource modification response message to the resource admission control system of the fixed network, where the initial policy rule is carried;
  • the resource admission control system of the fixed network formulates a final policy rule, informing the transport function entity of the fixed network to install the final policy rule, and returning a resource tampering response message to the application function of the fixed network.
  • the foregoing interaction method further includes:
  • the resource admission control system of the fixed network receives the application function sending resource release request message of the fixed network, the transmission function entity of the fixed network is notified to uninstall the policy rule on the fixed network, and the resource is released; the resource admission control system of the fixed network is fixed The application function of the network returns a resource release response message.
  • the present invention also provides a resource admission control system for a fixed network supporting resource admission control system interaction
  • the resource admission control system of the fixed network is configured to receive a resource request sent by an application function of the fixed network, perform an authorization check on the resource request, and interact with a resource admission control system of the mobile network to enable resource admission control of the mobile network.
  • the system performs an authorization check on the resource request, and if the authorization check passes, the resource admission control system of the fixed network formulates a final policy rule, and returns a resource response to the application function of the fixed network, where the resource request is a resource.
  • Initialization request or resource modification request
  • the resource admission control system of the fixed network is further configured to notify the transmission function entity of the fixed network to uninstall the policy rule, release the resource, and apply to the fixed network after receiving the resource release request sent by the application function of the fixed network.
  • the function returns a resource release response message.
  • the present invention also provides a resource admission control system for a mobile network supporting resource interaction control system interaction,
  • the resource admission control system of the mobile network is configured to perform an authorization check on the resource request, and notify the resource admission control system of the fixed network of the result of the authorization check, where the resource Request for a resource initialization request or resource modification request.
  • the present invention also provides an interaction device between resource admission control systems including a resource admission control system for a fixed network and a resource admission control system for a mobile network as described above.
  • the invention can realize the resource admission control of the mobile user terminal accessing on the fixed network side and carrying out the service in the fixed network.
  • FIG. 1 is a schematic diagram of a RACF functional architecture of an ITU-T in the prior art
  • FIG. 2 is a schematic diagram of a RACS function architecture of TISPAN in the prior art
  • 3 is a schematic diagram of a PCC functional architecture of the 3GPP in the prior art
  • Figure 5 is an interaction diagram of RACF/RACS and PCC
  • FIG. 6 is a flow chart of Embodiment 1 of the present invention.
  • FIG. 7 is a flow chart of Embodiment 2 of the present invention.
  • FIG. 8 is a flowchart of Embodiment 3 of the present invention.
  • a mobile user terminal accesses a network on a fixed network side and carries out services in a fixed network, and interacts with a resource admission control system (PCRF) of a mobile network through a resource admission control system (RACF/RACS) of a fixed network. , implement policy control over the business.
  • PCRF resource admission control system
  • RAF/RACS resource admission control system
  • the resource admission control system of the fixed network after receiving the resource request by the application function of the fixed network, the resource admission control system of the fixed network performs an authorization check on the resource request, and interacts with the resource admission control system of the mobile network to enable resource admission control of the mobile network.
  • the system performs an authorization check on the resource request. If the authorization check passes, the resource admission control system of the fixed network formulates a final policy rule, and returns a resource response to the application function of the fixed network.
  • the resource admission control system of the fixed network interacts with the resource admission control system of the mobile network through the S9' interface, and the resource admission control system or the mobile network of the fixed network
  • the resource admission control system or both work together to complete the matching and conversion of the required interactive message format or parameter form so that the information from the other party can be correctly identified and processed.
  • the application function of the fixed network is SCF, and the resource admission control system of the fixed network is RACF;
  • the application function of the fixed network is AF, and the resource admission control system of the fixed network is RACS;
  • the resource admission control system of the mobile network is a PCRF.
  • FIG. 6 is a flowchart of a first embodiment of the present invention, which shows a resource initialization request flow for a mobile user terminal to access a network on a fixed network side and perform a service in a fixed network, and involves RACF or RACS interacting with a PCRF, including The following steps:
  • the user terminal performs a service, completes application layer service negotiation, and triggers the SCF/AF to generate a resource initialization request.
  • the application layer service negotiation of the UE is the service data flow type of the service to be carried out, the address and port number used by the service data flow, the bandwidth required for the service data flow, the codec mode used for the service data flow, and the service data flow.
  • negotiation of information such as priority of processing;
  • the SCF/AF sends a resource initialization request message to the RACF/RACS;
  • the SCF/AF determines a QoS requirement parameter (such as a bandwidth, a service type, and the like) of the requested service, and then sends a resource initialization request message (reserved) to the RACF/RACS, where the message carries the media stream description and the QoS parameter, etc., Requesting RACF to perform QoS resource authorization and reservation;
  • a QoS requirement parameter such as a bandwidth, a service type, and the like
  • RACF/RACS authorizes the request
  • the RACF/RACS performs an authorization check on the request according to the local operator policy rule and the resource availability, including whether the QoS resource of the verification request is consistent with the local operator policy rule, and determines the access network involved in the requested QoS resource. Core network, checking the resource availability of the network involved;
  • the initialization request message is further sent to the PCRF;
  • the RACF/RACS If the authorization check fails, the RACF/RACS returns a failed resource initialization response message to the SCF/AF, which may carry the failure reason and no further steps are performed;
  • the PCRF After receiving the resource initialization request message, the PCRF interacts with the user information database to obtain the subscription information of the user and save the information to the local device.
  • the PCRF performs an authorization check on the request, and if the authorization check passes, the PCRF formulates an initial policy rule for the request.
  • the PCRF performs an authorization check on the request according to the local operator policy rule and the user subscription information, including whether the QoS resource of the verification request is consistent with the local operator policy rule and the user subscription information;
  • the PCRF formulates initial policy rules for the request according to user subscription information, local carrier policy rules, and service information.
  • the PCRF returns a failed resource initialization response message to the RACF/RACS, and the RACF/RACS returns a failed resource initialization response message to the SCF/AF, and the failed resource initialization response message may carry the failure reason, Perform the next steps;
  • the PCRF sends a resource initialization response message to the RACF/RACS, where the message carries an initial policy rule formulated by the PCRF.
  • RACF/RACS performs policy decision according to the results of steps 603 and 607, and formulates final policy rules
  • RACF/RACS formulates final policy rules based on initial policy rules, local operator policy rules, and resource availability;
  • the RACF/RACS sends a resource initialization request message to the transport function entity to inform the installation of the final policy rule;
  • the transport function entity installs the final policy rule from RACF/RACS, and replies to the resource initial response message;
  • RACF/RACS sends a resource initialization response message to the SCF/AF.
  • FIG. 7 is a flowchart of Embodiment 2 of the present invention, which shows a resource modification request process in which a mobile user terminal accesses a network on a fixed network side and performs a service in a fixed network, and involves a RACF/RACS interaction with a PCRF, including The following steps:
  • the service ⁇ ⁇ changes, the user terminal completes the negotiation of the application layer service information
  • the user terminal and the network negotiate the bandwidth required to modify the service data flow
  • the SCF/AF sends a resource modification request message to the RACF/RACS.
  • the SCF/AF determines a QoS requirement parameter (such as a bandwidth, a service type, and the like) of the service to be modified, and then sends a resource modification request message to the RACF/RACS, where the message carries the QoS parameter to be modified;
  • a QoS requirement parameter such as a bandwidth, a service type, and the like
  • RACF/RACS authorizes the request
  • the RACF/RACS performs an authorization check on the request according to the local operator policy rule and the resource availability, including verifying whether the modified QoS resource is consistent with the local operator policy rule; and determining the QoS resource required for the modification.
  • Incoming network and core network checking the resource availability of the network involved;
  • the resource modification request message is further sent to the PCRF;
  • the RACF/RACS If the authorization check fails, the RACF/RACS returns a failed resource modification response message to the SCF/AF, which may carry the failure reason and no further steps are performed;
  • the PCRF performs an authorization check on the request, and if the authorization check passes, the PCRF formulates an initial policy rule for the request.
  • the PCRF performs an authorization check on the request according to the local operator policy rule and the user subscription information, including verifying whether the modified QoS resource is consistent with the local operator policy rule and the user subscription information;
  • the PCRF formulates initial policy rules for the request according to user subscription information, local carrier policy rules, and service information.
  • the PCRF If the authorization check fails, the PCRF returns a failed resource modification response message to the RACF/RACS, and the RACF/RACS returns a failed resource modification response message to the SCF/AF, and the failed resource modification response message may carry the failure reason, Perform the next steps; 706.
  • the PCRF sends a resource modification response message to the RACF/RACS, where the message carries an initial policy rule formulated by the PCRF.
  • the RACF/RACS formulates a final policy rule according to the results of steps 703 and 706; specifically, the RACF/RACS formulates a final policy rule according to the initial policy rule, the local operator policy rule, and the resource availability;
  • the RACF/RACS sends a resource modification request message to the transport function entity to notify the terminal to install the final policy rule.
  • the transport function entity installs the final policy rule from RACF/RACS, and replies to the resource ⁇ ⁇ tamper response message;
  • the RACF/RACS sends a resource modification response message to the SCF/AF.
  • FIG. 8 is a flowchart of Embodiment 3 of the present invention, which shows a mobile user terminal accessing a network on a fixed network side and performing a service in a fixed network, and a resource release process involving interaction between a RACF/RACS and a PCRF, including the following Steps:
  • the user initiates a service release request, sends a release request message to the SCF/AF, and triggers the SCF/AF to generate a resource release request.
  • the SCF/AF sends a resource release request message to the RACF/RACS to release the service data flow corresponding to the service.
  • the RACF/RACS sends a resource release request message to the transport function entity to uninstall the policy rule on the same, and release the corresponding resource;
  • the transport function entity returns a resource release response message to the RACF/RACS;
  • RACF/RACS replies with a resource release response message to SCF/AF.
  • the interaction device between the resource admission control systems of the embodiment of the present invention includes a resource admission control system of a fixed network and a resource admission control system of the mobile network,
  • the resource admission control system of the fixed network is configured to perform an authorization check on the resource request after receiving an application function of the fixed network, and interact with the resource admission control system of the mobile network to enable resource admission of the mobile network.
  • the control system authorizes the resource request Checking, if the authorization check is passed, the resource admission control system of the fixed network formulates a final policy rule, and returns a resource response to the application function of the fixed network;
  • the resource admission control system of the mobile network is configured to perform an authorization check on the resource request, and inform the resource admission control system of the fixed network of the result of the authorization check.
  • the method and apparatus of the present invention can solve the resource admission control problem of the mobile user terminal accessing and carrying out the service in the fixed network on the fixed network side.

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Abstract

一种资源接纳控制系统间的交互方法和装置，应用于移动用户终端在固定网络侧接入网络，开展固定网络中的业务的情况，所述方法包括：固定网络的资源接纳控制系统接收到固定网络的应用功能发送的资源请求后，对所述资源请求进行授权检查，以及，与移动网络的资源接纳控制系统交互，使移动网络的资源接纳控制系统对所述资源请求进行授权检查，若授权检查均通过，则所述固定网络的资源接纳控制系统制定最终的策略规则，向固定网络的应用功能返回资源响应。所述装置包括固定网络的资源接纳控制系统和移动网络的资源接纳控制系统。本发明的方法和装置可以解决移动用户终端在固网侧接入、开展固网中的业务的资源接纳控制问题。

Description

一种资源接纳控制系统间的交互方法和装置 技术领域
本发明涉及通信领域， 尤其涉及一种资源接纳控制系统间的交互方法和 装置。
背景技术
NGN ( Network Generation Network, 下一代网络）是当前通信标准领域 的一个热点研究课题， 它釆用 IP等分组技术作为承载网技术融合固定通信和 移动通信。 NGN可以提供更丰富的多媒体业务， 如具有实时要求的新兴业务 (如 VoIP、 视频会议、 多媒体远程教学、 视频点播等） ， 这些业务要求通信 网络能提供高效的端到端的服务质量（Quality of Service, QoS ) 支持； 同时 用户对网络服务质量的要求也越来越高。 因此， 如何提供端到端的 QoS将是 NGN的核心问题之一。
国际电信联盟电信标准化部门 ( International Telecommunication
Union-Telecommunications standardization sector, 简称为 ITU-T )是国际电信 联盟 ( International Telecommunication Union, 简称为 ITU ) 的电信化部门， 制定了有关资源接纳控制的标准。 在 ITU-T公布的最新的资源接纳控制功能 ( Resource and Admission Control Functions , 简称为 RACF )草案中, 提供了 RACF的功能框架， 如图 1所示， RACF由两部分组成， 分别是策略决策功能 实体（ Policy Decision Functional Entity, 简称为 PD-FE )和传输资源控制功能 实体 ( Transport Resource Control Functional Entity, TRC-FE ) , 其中, TRC-FE 通过 Rc 与传输功能交互， 通过 Rn 与传输资源执行功能实体 ( Transport Resource Enforcement Functional Entity, 简称为 TRE-FE )交互, 并且, PD-FE 通过 Rt与 TRC-FE交互，通过 Rh与用户驻地网（ Customer Premises Network, 简称为 CPN ) 交互， 通过 Rw 与策略执行功能实体 ( Policy Enforcement Functional Entity, 简称为 PE-FE ) 交互， 通过 Rs 与业务层的业务控制功能 ( Service Control Functions, 简称为 SCF ) 交互， 通过 Ru与网络附着控制功 能（Network Attachment Control Functions, 简称为 NACF )交互， 并且 PD-FE 通过 Ri接口与其他下一代网络交互。
此外， PD-FE与传输技术无关， 与 SCF也无关， PD-FE基于网络策略规 则、 SCF提供的业务信息、 NACF提供的传输层签约信息， 以及 TRC-FE提 供的资源可用性决策结果， 做出资源接纳控制的最后决策。
TRC-FE与业务无关， 但与传输技术相关。 TRC-FE负责收集和维护传输 网信息和资源状态信息。 从 PD-FE收到资源请求后， TRC-FE基于 QoS、 优 先级需求、 资源可用性信息以及与传输相关的策略规则， 执行基于资源的接 纳控制。
传输层由策略执行功能实体 PE-FE和传输资源执行功能实体 TRE-FE组 成。 PE-FE执行 PD-FE下发的策略规则， PE-FE是包到包（ Packet-to-packet ) 网关， 可以位于用户驻地网 CPN和接入网络之间、接入网和核心网之间或者 不同运营商网络之间， 是支持动态 QoS控制、 端口地址转换控制和网络地址 转换（Network Address Translator, 简称为 NAT ) 穿越的关键节点。 TRE-FE 执行 TRC-FE下发的传输资源策略规则，其范围和功能以及 Rn接口有待进一 步研究， 不在 R2阶段的研究范围。
TISPAN ( Telecommunication and Internet converged Services and Protocols for Advanced Networking, 用于高级网络的通信和互联网融合的业务和协议） 从固定接入角度出发， 提出了 RACS ( Resource and Admission Control Subsystem, 资源接纳控制子系统）来解决 NGN承载网的 QoS问题。 TISPAN 将 NGN 架构分为业务层和传输层， 在传输控制层引入了 RACS 与 NASS ( Network Attachment Subsystem, 网络附着子系统）， RACS解决 NGN承载 网的 QoS 问题， 而 NASS 则负责为上层业务层提供独立的用户接入管理。 TISPAN RACS的主要功能与 ITU-T RACF类似。
TISPAN RACS的功能架构如图 2所示。 RACS是 NGN组成部分之一， 它将业务层（如 IMS ) 的资源需求与网络承载层的资源分配相关联， 主要完 成策略控制、 资源预留、 接纳控制、 NAT 穿越等功能。 RACS 通过一系列 QoS策略为应用功能（Application Function, AF )提供传输层的控制服务， 使 得用户终端 （User Equipment, UE )可以获得所需 QoS保证的业务。
RACS由两个实体组成： SPDF ( Service-based Policy Decision Function, 基于业务的策略决策功能）和 A-RACF( Access-Resource and Admission Control Function, 接入资源接纳控制功能） ， 其中：
SPDF, 向应用功能提供统一的接口， 屏蔽底层网络拓朴和具体的接入类 型，提供基于业务的策略控制。 SPDF根据应用功能 AF的请求选择本地策略， 并将请求映射成 QoS参数，发送给 A-RACF和 BGF( Border Gateway Function , 边界网关功能） ， 以控制相应的资源。
A-RACF, 控制接入网， 具有接纳控制和网络策略汇聚的功能。 从 SPDF 接收请求， 然后基于接入网策略实现接纳控制， 接受或拒绝对传输资源的请 求。 A-RACF通过 e4接口从网络附着子系统（NASS )获得网络附着信息和 用户 QoS清单信息， 从而可以根据网络位置信息（例如接入用户的物理节点 的地址）确定可用的网络资源， 同时在处理资源分配请求时检查所请求的带 宽信息是否与用户接入清单中描述的一致。
传输层中包含二种功能实体： BGF ( Border Gateway Function , 边界网关 功能）和 RCEF ( Resource Control Enforcement Function,资源控制执行功能）， 其中：
BGF , 是一个包到包网关， 可位于接入网和核心网之间 （实现核心边界 网关功能） ， 也可以位于两个核心网之间 （实现互联边界网关功能） 。 BGF 在 SPDF的控制下完成 NAT穿越、 门控、 QoS标记、 带宽限制、 使用测量以 及资源同步功能。
RCEF, 实施 A-RACF通过 Re接口传送过来的二层 /三层（ L2/L3 )媒体 流策略， 完成门控、 QoS标记、 带宽限制等功能。
3GPP ( The 3rd Generation Partnership Project, 第三代合作伙伴计划）则 从移动接入角度出发， 提出了 PCC ( Policy Control and Charging, 策略控制和 计费 ) ,来完成资源接纳控制功能。 PCC位于业务控制层和接入 /承载层之间， 针对移动接入网的特性实现一定的 QoS控制机制， 主要提供的功能有： 基于 用户的定制信息实现策略控制、 基于业务数据流的计费控制。
3GPP PCC的功能架构图如图 3所示。 PCRF ( Policy and Charging Rule Function, 策略与计费规则功能） 包括策略控制决策和按流计费控制功能。 PCRF提供了面向 PCEF ( Policy and Charging Enforcement Function, 策略与计 费执行功能） 的有关业务数据流的检测、 门控、 QoS和按流计费 （信用度管 理除外） 的网络控制功能。
PCEF包括业务数据流检测、策略实施和按流计费功能。该功能实体位于 网关（ GW ) 。 PCEF提供业务数据流检测、 用户平面流量处理、 触发控制平 面会话管理、 QoS 实施、 业务数据流测量以及与计费系统交互。 SPR ( Subscription Profile Repository, 签约清单库）存储用户签约数据。 OCS和 OFCS分别是在线计费系统和离线计费系统， 其中在 OCS中， 包括移动网络 增强定制应用逻辑业务控制点 ( CAMEL SCP )和基于信用控制的业务数据流 ( Service Data Flow Based Credit Control ) 。
移动网络在多媒体业务带宽方面的保障不如固定网络或者 WIFI等无线 局域网， 并且移动网络中 MBMS ( Multimedia Broadcast/Multicast Service , 多 媒体广播组播业务）和 PSS ( Packet-switched Streaming Service, 包交换流媒 体业务）提供的业务不如 IPTV业务丰富， 因此移动用户可以考虑在家里接入 IPTV业务。 由于固定网络（简称固网）、 移动网络均部署实施了各自的资源 控制系统和业务功能， 当移动用户 （双模移动终端）通过固定网络接入并访 问固定网络中的 IPTV业务时， 为了提供 QoS支持， 固网中的资源接纳控制 功能实体 RACF/RACS需要与移动网络中的策略与计费规则功能 PCRF交互， 其组网方案如图 4所示， PCRF与移动用户信息库相连。 图 5进一步给出了 RACF/RACS与 PCC的交互图， RACF/RACS与 PCC通过接口 S9，相连， 该 接口主要用于 RACF/RACS与 PCC间的信息交互。 由于 RACF、 RACS、 PCC 在架构、 网络范围以及涉及的节点类型方面存在很大差异， 现有技术下的 RACF、 RACS、 PCC支持的功能无法保证图 4/图 5所示场景下用户的业务体 验质量。 解决现有技术中 RACF、 RACS、 PCC之间无法协同 /交互工作的问 题， 是亟需解决的问题。
发明内容
为解决现有技术问题， 本发明提出一种资源接纳控制系统间的交互方法 和装置， 以实现移动用户在固网侧接入并访问固网业务的资源接纳控制。 本发明提供一种资源接纳控制系统间的交互方法， 应用于移动用户终端 在固定网络侧接入网络， 开展固定网络中的业务的情况， 包括：
固定网络的资源接纳控制系统接收到固定网络的应用功能发送的资源请 求， 对所述资源请求进行授权检查， 以及， 与移动网络的资源接纳控制系统 交互， 使移动网络的资源接纳控制系统对所述资源请求进行授权检查， 若授 权检查均通过， 则所述固定网络的资源接纳控制系统制定最终的策略规则， 向固定网络的应用功能返回资源响应。
进一步地， 上述交互方法还可具有以下特点：
所述固定网络的资源接纳控制系统是根据本地运营商策略规则和资源可 用性对所述资源请求进行授权检查。
进一步地， 上述交互方法还可具有以下特点：
所述移动网络的资源接纳控制系统是根据本地运营商策略规则以及用户 签约信息对所述资源请求进行授权检查。
进一步地， 上述交互方法还包括：
所述移动网络的资源接纳控制系统在对所述资源请求进行授权检查通过 后， 对所述资源请求制定初始的策略规则， 并将所述初始的策略规则发送给 固定网络的资源接纳控制系统。
进一步地， 上述交互方法还可具有以下特点：
所述移动网络的资源接纳控制系统是根据用户签约信息、 本地运营商策 略规则和业务信息对所述资源请求制定初始的策略规则。
进一步地， 上述交互方法还可具有以下特点：
所述固定网络的资源接纳控制系统是根据所述初始的策略规则、 本地运 营商策略规则以及资源可用性制定最终的策略规则。
进一步地， 上述交互方法还包括：
所述固定网络的资源接纳控制系统在制定最终的策略规则后， 告知固定 网络的传输功能实体安装所述最终的策略规则。
进一步地， 上述交互方法还可具有以下特点： 所述固定网络的资源接纳控制系统与移动网络的资源接纳控制系统通过
S9'接口进行信息交互， 并且由所述固定网络的资源接纳控制系统或移动网络 的资源接纳控制系统或两者共同完成所需交互消息格式或参数形式的匹配与 转换， 使来自对方的信息能被正确识别处理。
进一步地， 上述交互方法还可具有以下特点：
针对国际电信联盟电信标准化部门（ITU-T )的标准， 所述固定网络的应 用功能为业务控制功能 （SCF ) , 固定网络的资源接纳控制系统为资源接纳 控制功能（RACF ) ；
针对用于高级网络的通信和互联网融合的业务和协议（ TISPAN ) , 所述 固定网络的应用功能为应用功能（AF ) , 固定网络的资源接纳控制系统为资 源接纳控制子系统（ RACS ) ；
所述移动网络的资源接纳控制系统为策略与计费规则功能（PCRF ) 。 进一步地， 上述交互方法还可具有以下特点：
所述资源请求为资源初始化请求， 所述方法具体包括如下步骤： 固定网络的资源接纳控制系统接收到固定网络的应用功能发送资源初始 化请求消息后， 对所述资源初始化请求消息进行授权检查， 若授权检查通过， 则将资源初始化请求消息发送给移动网络的资源接纳控制系统；
所述移动网络的资源接纳控制系统对所述资源初始化请求消息进行授权 检查， 若授权检查通过， 则对所述资源初始化请求消息制定初始的策略规则， 向所述固定网络的资源接纳控制系统返回资源初始化响应消息， 其中携带所 述初始的策略规则；
所述固定网络的资源接纳控制系统制定最终的策略规则， 告知固定网络 的传输功能实体安装所述最终的策略规则， 向固定网络的应用功能返回资源 初始^ <响应消息。
进一步地， 上述交互方法还可具有以下特点：
所述资源请求为资源修改请求， 所述方法具体包括如下步骤：
固定网络的资源接纳控制系统接收到固定网络的应用功能发送资源修改 请求消息后， 对所述资源修改请求消息进行授权检查， 若授权检查通过， 则 将所述资源修改请求消息发送给移动网络的资源接纳控制系统； 所述移动网络的资源接纳控制系统对所述资源修改请求消息进行授权检 查， 若授权检查通过， 则对所述资源修改请求消息制定初始的策略规则， 向 所述固定网络的资源接纳控制系统返回资源修改响应消息， 其中携带所述初 始的策略规则；
所述固定网络的资源接纳控制系统制定最终的策略规则， 告知固定网络 的传输功能实体安装所述最终的策略规则， 向固定网络的应用功能返回资源 爹改响应消息。
进一步地， 上述交互方法还包括：
若固定网络的资源接纳控制系统接收到固定网络的应用功能发送资源释 放请求消息， 则告知固定网络的传输功能实体卸载其上的策略规则， 释放资 源； 所述固定网络的资源接纳控制系统向固定网络的应用功能返回资源释放 响应消息。
本发明还提供一种支持资源接纳控制系统间交互的固定网络的资源接纳 控制系统，
所述固定网络的资源接纳控制系统设置成接收固定网络的应用功能发送 的资源请求， 对所述资源请求进行授权检查， 以及， 与移动网络的资源接纳 控制系统交互， 使移动网络的资源接纳控制系统对所述资源请求进行授权检 查， 若授权检查均通过， 则所述固定网络的资源接纳控制系统制定最终的策 略规则， 向固定网络的应用功能返回资源响应， 其中， 所述资源请求为资源 初始化请求或资源修改请求；
所述固定网络的资源接纳控制系统还设置成在接收到固定网络的应用功 能发送的资源释放请求后， 告知固定网络的传输功能实体卸载其上的策略规 则， 释放资源， 并向固定网络的应用功能返回资源释放响应消息。
本发明还提供一种支持资源接纳控制系统间交互的移动网络的资源接纳 控制系统，
所述移动网络的资源接纳控制系统设置成对资源请求进行授权检查， 并 将授权检查的结果告知所述固定网络的资源接纳控制系统， 其中， 所述资源 请求为资源初始化请求或资源修改请求。
本发明还提供一种资源接纳控制系统间的交互装置， 其包括如上所述的 固定网络的资源接纳控制系统和移动网络的资源接纳控制系统。
本发明可以实现移动用户终端在固网侧接入、 开展固网中的业务的资源 接纳控制。
附图概述
图 1是现有技术中 ITU-T的 RACF功能架构图；
图 2是现有技术中 TISPAN的 RACS功能架构图；
图 3是现有技术中 3GPP的 PCC功能架构图；
图 4是现有技术中涉及资源接纳控制系统间交互的组网图；
图 5是 RACF/RACS与 PCC的交互图；
图 6是本发明实施例一流程图；
图 7是本发明实施例二流程图；
图 8是本发明实施例三流程图。
本发明的较佳实施方式
本发明的基本构思是： 移动用户终端在固定网络侧接入网络并开展固定 网络中的业务， 通过固定网络的资源接纳控制系统（RACF/RACS )与移动网 络的资源接纳控制系统（PCRF ) 交互， 对业务实施策略控制。
具体地， 固定网络的资源接纳控制系统接收到固定网络的应用功能发送 资源请求后， 对所述资源请求进行授权检查， 以及， 与移动网络的资源接纳 控制系统交互， 使移动网络的资源接纳控制系统对所述资源请求进行授权检 查， 若授权检查均通过， 则所述固定网络的资源接纳控制系统制定最终的策 略规则， 向固定网络的应用功能返回资源响应。
固定网络的资源接纳控制系统与移动网络的资源接纳控制系统通过 S9' 接口进行信息交互， 并且由所述固定网络的资源接纳控制系统或移动网络的 资源接纳控制系统或两者共同完成所需交互消息格式或参数形式的匹配与转 换， 使来自对方的信息能被正确识别处理。
其中， 针对 ITU-T的标准， 所述固定网络的应用功能为 SCF, 固定网络 的资源接纳控制系统为 RACF;
针对 TISPAN, 所述固定网络的应用功能为 AF, 固定网络的资源接纳控 制系统为 RACS;
所述移动网络的资源接纳控制系统为 PCRF。
下面结合附图及具体实施例对本发明进行详细说明。
实施例一
图 6是本发明实施例一的流程图， 该流程图给出了移动用户终端在固网 侧接入网络并开展固网中的业务， 涉及 RACF或 RACS与 PCRF交互的资源 初始化请求流程， 包括以下步骤：
601 , 用户终端 （UE )开展业务， 完成应用层业务协商， 触发 SCF/AF 生成资源初始化请求；
其中， UE的应用层业务协商即进行待开展业务的业务数据流类型、业务 数据流使用的地址和端口号、 业务数据流所需的带宽、 业务数据流釆用的编 解码方式、 业务数据流处理的优先级等信息的协商；
602, SCF/AF发送资源初始化请求消息给 RACF/RACS;
具体地， SCF/AF确定所请求业务的 QoS需求参数（如带宽、 业务类型 等） ， 然后发送资源初始化请求消息 （预留）给 RACF/RACS, 消息中携带 媒体流描述和 QoS参数等， 以请求 RACF进行 QoS资源授权和预留；
603 , RACF/RACS对该请求进行授权检查；
具体地， RACF/RACS根据本地运营商策略规则、 资源可用性对该请求 进行授权检查， 包括验证请求的 QoS资源是否与本地运营商策略规则一致； 并决策请求的 QoS资源所涉及的接入网和核心网， 检查所涉及网络的资源可 用性；
604, 由于 RACF/RACS不拥有用户签约信息， 若授权检查通过， 则资源 初始化请求消息被进一步发送到 PCRF;
若授权检查未通过， 则 RACF/RACS向 SCF/AF返回失败的资源初始化 响应消息， 其中可以携带失败原因， 不再执行后续步骤；
605, PCRF接收到资源初始化请求消息后， PCRF与用户信息库交互， 获取用户的签约信息并保存到本地；
606, PCRF对该请求进行授权检查， 若授权检查通过， 则 PCRF对该请 求制定初始的策略规则；
具体地, PCRF根据本地运营商策略规则以及用户签约信息对该请求进行 授权检查， 包括验证请求的 QoS资源是否与本地运营商策略规则以及用户签 约信息一致；
PCRF根据用户签约信息、本地运营商策略规则、业务信息等对该请求制 定初始的策略规则；
其中， 若授权检查未通过， 则 PCRF向 RACF/RACS返回失败的资源初 始化响应消息， RACF/RACS向 SCF/AF返回失败的资源初始化响应消息， 失 败的资源初始化响应消息中可以携带失败原因， 不再执行后续步骤；
607 , PCRF 发送资源初始化响应消息给 RACF/RACS , 该消息中携带 PCRF制定的初始的策略规则；
608, RACF/RACS根据步骤 603和 607的结果进行策略决策， 制定最终 的策略规则；
具体地， RACF/RACS根据初始的策略规则、 本地运营商策略规则以及 资源可用性制定最终的策略规则；
609, RACF/RACS发送资源初始化请求消息给传输功能实体， 以告知其 安装最终的策略规则；
610, 传输功能实体安装来自 RACF/RACS的最终的策略规则， 并回复资 源初始 响应消息；
611 , RACF/RACS发送资源初始化响应消息给 SCF/AF。
实施例二 图 7是本发明实施例二的流程图， 该流程图给出了移动用户终端在固网 侧接入网络并开展固网中的业务， 涉及 RACF/RACS与 PCRF交互的资源修 改请求流程， 包括以下步骤：
701 , 业务^ ί 改， 用户终端完成应用层业务信息的协商；
例如用户终端和网络协商修改业务数据流所需的带宽；
702, SCF/AF发送资源修改请求消息给 RACF/RACS;
具体地， SCF/AF确定所需修改的业务的 QoS需求参数（如带宽、 业务 类型等） ， 然后发送资源修改请求消息给 RACF/RACS, 消息中携带需修改 的 QoS参数等；
703 , RACF/RACS对该请求进行授权检查；
具体地， RACF/RACS根据本地运营商策略规则、 资源可用性对该请求 进行授权检查，包括验证修改后的 QoS资源是否与本地运营商策略规则一致； 并决策所需修改的 QoS资源所涉及的接入网和核心网， 检查所涉及网络的资 源可用性；
704, 由于 RACF/RACS不拥有用户签约信息， 若授权检查通过， 资源修 改请求消息被进一步发送到 PCRF;
若授权检查未通过， 则 RACF/RACS向 SCF/AF返回失败的资源修改响 应消息， 其中可以携带失败原因， 不再执行后续步骤；
705, PCRF对该请求进行授权检查， 若授权检查通过， 则 PCRF对该请 求制定初始的策略规则；
具体地, PCRF根据本地运营商策略规则以及用户签约信息对该请求进行 授权检查， 包括验证修改后的 QoS资源是否与本地运营商策略规则以及用户 签约信息一致；
PCRF根据用户签约信息、本地运营商策略规则、业务信息等对该请求制 定初始的策略规则；
其中， 若授权检查未通过， 则 PCRF向 RACF/RACS返回失败的资源修 改响应消息， RACF/RACS向 SCF/AF返回失败的资源修改响应消息， 失败的 资源修改响应消息中可以携带失败原因， 不再执行后续步骤； 706 , PCRF发送资源修改响应消息给 RACF/RACS , 该消息中携带 PCRF 制定的初始的策略规则；
707 , RACF/RACS根据步骤 703和 706的结果制定最终的策略规则； 具体地， RACF/RACS根据初始的策略规则、 本地运营商策略规则以及 资源可用性制定最终的策略规则；
708, RACF/RACS发送资源修改请求消息给传输功能实体， 以告知其安 装最终的策略规则；
709, 传输功能实体安装来自 RACF/RACS的最终的策略规则， 并回复资 源^ ί'爹改响应消息；
710, RACF/RACS发送资源修改响应消息给 SCF/AF。
实施例三
图 8是本发明实施例三的流程图， 该流程图给出了移动用户终端在固网 侧接入网络并开展固网中的业务， 涉及 RACF/RACS与 PCRF交互的资源释 放流程， 包括以下步骤：
801 ,用户发起业务释放请求，发送释放请求消息给 SCF/AF,触发 SCF/AF 生成资源释放请求；
802, SCF/AF发送资源释放请求消息给 RACF/RACS, 以释放业务对应 的业务数据流；
803 , RACF/RACS发送资源释放请求消息给传输功能实体以卸载其上的 策略规则， 释放相应的资源；
804 , 传输功能实体回复资源释放响应消息给 RACF/RACS;
805 , RACF/RACS回复资源释放响应消息给 SCF/AF。
本发明实施例的资源接纳控制系统间的交互装置， 包括固定网络的资源 接纳控制系统和移动网络的资源接纳控制系统，
其中， 固定网络的资源接纳控制系统用于接收到固定网络的应用功能发 送资源请求后， 对所述资源请求进行授权检查， 以及， 与移动网络的资源接 纳控制系统交互， 使移动网络的资源接纳控制系统对所述资源请求进行授权 检查， 若授权检查均通过， 则所述固定网络的资源接纳控制系统制定最终的 策略规则， 向固定网络的应用功能返回资源响应；
移动网络的资源接纳控制系统用于对所述资源请求进行授权检查， 并将 授权检查的结果告知所述固定网络的资源接纳控制系统。
通过上述方法和装置， 可以解决移动用户终端在固网侧接入、 开展固网 中的业务的资源接纳控制问题。
当然， 本发明还可有其它多种实施例， 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性
与现有技术相比， 本发明的方法和装置可以解决移动用户终端在固网侧 接入、 开展固网中的业务的资源接纳控制问题。

Claims

权 利 要 求 书
1、一种资源接纳控制系统间的交互方法， 应用于移动用户终端在固定网 络侧接入网络， 开展固定网络中的业务的情况， 其包括：
固定网络的资源接纳控制系统接收到固定网络的应用功能发送的资源请 求后， 对所述资源请求进行授权检查， 以及， 与移动网络的资源接纳控制系 统交互， 使移动网络的资源接纳控制系统对所述资源请求进行授权检查， 若 授权检查均通过，则所述固定网络的资源接纳控制系统制定最终的策略规则， 向固定网络的应用功能返回资源响应。
2、 如权利要求 1所述的交互方法， 其中，
所述固定网络的资源接纳控制系统是根据本地运营商策略规则和资源可 用性对所述资源请求进行授权检查。
3、 如权利要求 1所述的交互方法， 其中，
所述移动网络的资源接纳控制系统是根据本地运营商策略规则以及用户 签约信息对所述资源请求进行授权检查。
4、 如权利要求 1所述的交互方法， 其还包括，
所述移动网络的资源接纳控制系统在对所述资源请求进行授权检查通过 后， 对所述资源请求制定初始的策略规则， 并将所述初始的策略规则发送给 固定网络的资源接纳控制系统。
5、 如权利要求 4所述的交互方法， 其中，
所述移动网络的资源接纳控制系统是根据用户签约信息、 本地运营商策 略规则和业务信息对所述资源请求制定初始的策略规则。
6、 如权利要求 4所述的交互方法， 其中，
所述固定网络的资源接纳控制系统是根据所述初始的策略规则、 本地运 营商策略规则以及资源可用性制定最终的策略规则。
7、 如权利要求 1所述的交互方法， 其还包括，
所述固定网络的资源接纳控制系统在制定最终的策略规则后， 告知固定 网络的传输功能实体安装所述最终的策略规则。
8、 如权利要求 1所述的交互方法， 其中， 与移动网络的资源接纳控制系 统交互的步骤中：
所述固定网络的资源接纳控制系统与移动网络的资源接纳控制系统通过 S9'接口进行信息交互， 并且由所述固定网络的资源接纳控制系统或移动网络 的资源接纳控制系统或两者共同完成所需交互消息格式或参数形式的匹配与 转换， 使来自对方的信息能被正确识别处理。
9、 如权利要求 1所述的交互方法， 其中，
针对国际电信联盟电信标准化部门（ITU-T )的标准， 所述固定网络的应 用功能为业务控制功能 （SCF ) , 固定网络的资源接纳控制系统为资源接纳 控制功能（RACF ) ；
针对用于高级网络的通信和互联网融合的业务和协议（ TISPAN ) , 所述 固定网络的应用功能为应用功能（AF ) , 固定网络的资源接纳控制系统为资 源接纳控制子系统（ RACS ) ；
所述移动网络的资源接纳控制系统为策略与计费规则功能（PCRF ) 。
10、 如权利要求 1 ~ 9中任意一项所述的交互方法， 其中， 所述资源请求 为资源初始化请求。
11、 如权利要求 1 ~ 9中任意一项所述的交互方法， 其中， 所述资源请求 为资源修改请求。
12、 如权利要求 10或 11所述的交互方法， 其还包括，
若固定网络的资源接纳控制系统接收到固定网络的应用功能发送的资源 释放请求， 则告知固定网络的传输功能实体卸载其上的策略规则， 释放资源； 所述固定网络的资源接纳控制系统向固定网络的应用功能返回资源释放响应 消息。
13、一种支持资源接纳控制系统间交互的固定网络的资源接纳控制系统， 所述固定网络的资源接纳控制系统设置成接收固定网络的应用功能发送 的资源请求， 对所述资源请求进行授权检查， 以及， 与移动网络的资源接纳 控制系统交互， 使移动网络的资源接纳控制系统对所述资源请求进行授权检 查， 若授权检查均通过， 则制定最终的策略规则， 向固定网络的应用功能返 回资源响应， 其中， 所述资源请求为资源初始化请求或资源修改请求； 所述固定网络的资源接纳控制系统还设置成在接收到固定网络的应用功 能发送的资源释放请求后， 告知固定网络的传输功能实体卸载其上的策略规 则， 释放资源， 并向固定网络的应用功能返回资源释放响应消息。
14、一种支持资源接纳控制系统间交互的移动网络的资源接纳控制系统， 所述移动网络的资源接纳控制系统设置成对固定网络的应用功能发送的资源 请求进行授权检查，并将授权检查的结果告知固定网络的资源接纳控制系统， 其中， 所述资源请求为资源初始化请求或资源修改请求。
15、 一种资源接纳控制系统间的交互装置， 其包括如权利要求 13所述的 固定网络的资源接纳控制系统和如权利要求 14 所述的移动网络的资源接纳 控制系统。
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