WO2015055063A1 - Application access control method and application function entity apparatus - Google Patents

Application access control method and application function entity apparatus Download PDF

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Publication number
WO2015055063A1
WO2015055063A1 PCT/CN2014/086450 CN2014086450W WO2015055063A1 WO 2015055063 A1 WO2015055063 A1 WO 2015055063A1 CN 2014086450 W CN2014086450 W CN 2014086450W WO 2015055063 A1 WO2015055063 A1 WO 2015055063A1
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WIPO (PCT)
Prior art keywords
aac
pcrf
network
information
subscription
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PCT/CN2014/086450
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French (fr)
Chinese (zh)
Inventor
吴锦花
周晓云
刘小华
吴近峰
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中兴通讯股份有限公司
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Publication of WO2015055063A1 publication Critical patent/WO2015055063A1/en

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    • 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
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8038—Roaming or handoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management

Definitions

  • the present invention relates to the field of communications, and in particular to an application access control method and an application function entity device.
  • PCC Policy and Charging Control
  • PCRF Policy and Charging Rules Function
  • Policy and Charging Enforcement Function Policy and Charging Enforcement Function
  • PCEF Policy and Charging Enforcement Function
  • P-GW Packet Data Network Gateway
  • PDN GW Packet Data Network Gateway
  • BBERF Bearer Binding and Event Report Function
  • S-GW Serving Gateway
  • Application Function, AF Application Function
  • IP service network protocol
  • SPR Subscription Profile Repository
  • HSS Home Subscriber Server
  • the PCC implements policy charging control for an IP Connectivity Access Network (IP-CAN) session established by the UE to access a Packet Data Network (PDN) through the above functional entity.
  • IP-CAN IP Connectivity Access Network
  • PDN Packet Data Network
  • FIG. 1 is a schematic diagram of a PCC non-roaming architecture according to the related art.
  • the PCRF is mainly responsible for formulating policy and charging rules, and the PCC policy and charging rules are sent to the PCEF through the Gx interface, and the PCEF is installed. Execute a PCC policy, report related events, and exchange billing information with the billing system.
  • the AF provides the service information to the PCRF through the Rx interface, and the SPR stores the service information subscribed by the user.
  • the PCRF can query the SPR for the service information subscribed by the user through the Sp interface.
  • the PCEF sends the online charging information to the online charging system (OSC) through the Gy interface to calculate the online charging statistics, and sends the offline charging information to the offline charging system through the Gz interface (Offline Charging System, Referred to as OFCS).
  • PCEF also enhances Application Detection Control (ADC).
  • the traffic detection function (Traffic Detection Function, TDF for short) is connected to the PCRF through the Sd interface.
  • the TDF can perform application detection and policy execution according to the application detection control rules delivered by the pre-configuration or PCRF.
  • the network After the UE establishes an IP-CAN session to a certain PDN, the network provides a default subscription resource according to the corresponding authorized QoS.
  • the AF will provide new QoS information to the PCRF, and the PCRF initiates an IP-CAN session modification procedure to provide resource authorization for the service.
  • the service information required for the authorization of the service resource cannot be provided to the PCRF.
  • An improved method is to deploy a network element for performing application access control on a third-party reference between a third-party data application provider and an operation network PCRF, and FIG.
  • FIG. 2 is a PCC non-roaming according to the related art.
  • the Rx interface between the application access control network element and the third party can communicate using, for example, a SOAP or restful protocol, and the Rx interface between the PCRFs can communicate based on the Diameter or xml protocol.
  • the application access control network element application access control, AAC for short
  • the protocol converter (PC) function can implement protocol conversion between the third-party data application provider and the PCRF, and complete the application provider. Delivery of information, business information, QoS requirements, and billing information.
  • the application access control function is deployed in the user home network in the above enhanced architecture.
  • the service available for the user in the network not only belongs to the third party service subscribed by the network, but also includes the visited place.
  • the problem of implementing the service and charging and policy control of the service in the roaming scenario needs to be solved. For example, a third-party service contracting requires the operator to charge a third-party charging requirement. If the contracted carrier network is not the user's home network or the visited network, the existing PCC roaming architecture cannot support the service to meet such requirements.
  • a third-party service contract is represented by a specific operator for its secure access to all mobile operator networks.
  • the agent cannot directly access the AAC from the home location by distinguishing the requirements of the resource authorization and charging agent according to the own user level. .
  • how to support the development of third-party data application services of users in such roaming scenarios and meet the requirements of the above-mentioned services and operators in the roaming scenario has become a problem to be solved.
  • the present invention provides an application access control method and an application function entity device to solve at least the problem of related technologies that cannot implement charging and policy control of a certain type of service.
  • an application access control method including: an application function entity AF selects an access application access control network element AAC according to a priority principle; and the AF sends the PCR to the PCRF through the AAC. Information, wherein the information is used to cause the policy and charging rules function entity PCRF to perform policy and charging decisions.
  • the selecting, by the AF, the accessing the AAC according to the priority principle includes: the AF preferentially accessing the AAC of the nearest network according to the location priority; and/or the AF preferentially accessing the subscription according to the subscription priority AAC with a high priority.
  • the subscription priority depends on the roaming agreement.
  • the step of the AF transmitting the service information to the PCRF by using the AAC includes: the AAC sending a message to the DRA; the DRA selecting according to the message The correct PCRF; the AF sends the information to the PCRF selected by the DRA through the AAC.
  • the step of the AF transmitting the service information to the PCRF by using the AAC includes: in the case that the home network or the visited network is subscribed, the AAC selects a PCRF access of the subscription network. The AF sends the information to the PCRF accessed by the AAC through the AAC.
  • the method further includes: the AAC performing subscription information check and/or resource admission control on the AF access network.
  • an application function entity device comprising: a selection module, configured to select an access application access control network element AAC according to a priority principle; and a sending module configured to pass the The AAC sends information to the PCRF, where the information is used to cause the PCRF to perform policy and charging decisions.
  • the selecting module is configured to preferentially access the AAC of the nearest network according to the location priority; and/or, set to preferentially access the AAC with the highest subscription priority according to the subscription priority.
  • the subscription priority depends on the roaming agreement.
  • the sending module is configured to send information to the correct PCRF selected by the AAC to the DRA, wherein the information is used to enable the PCRF to perform policy and charging decisions.
  • the DRA is based on the message sent by the AAC to select the correct PCRF.
  • the application function entity AF is selected according to the priority principle, and the accessed application access control network element AAC is selected; the AF sends information to the PCRF through the AAC, where the information is used to enable the PCRF to perform policy and charging decisions. .
  • the problem of charging and policy control of a certain type of service cannot be realized by the related technology, and the billing and policy control of the service is realized.
  • FIG. 1 is a schematic diagram of a PCC non-roaming architecture according to the related art
  • FIG. 2 is a schematic diagram of a PCC non-roaming architecture according to the related art in which an AAC function is deployed;
  • FIG. 3 is a flowchart of an application access control method according to an embodiment of the present invention.
  • FIG. 4 is a structural block diagram of an application function entity device according to an embodiment of the present invention.
  • 5-1 is a schematic diagram (LBO) of an AF access proximity AAC architecture according to an embodiment of the present invention
  • 5-2 is a schematic diagram (HR) of an AF proximity access AAC architecture according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of triggering an IP session of an IP-CAN session by an AF initiating an AF session through a 3rd party AAC according to a location priority relationship according to an embodiment of the present invention
  • FIG. 7-1 is a schematic diagram of an AAC architecture (LBO) for accessing a visited location according to a subscription relationship according to a location-to-access AAC architecture according to an embodiment of the present invention
  • LBO schematic diagram
  • FIG. 7-3 is a schematic diagram (HR) of an AAC architecture in which an AF accesses a home according to a subscription relationship according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a process of triggering an AF session through an HAAC and triggering an IP-CAN session modification according to a subscription priority relationship according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of an application access control method according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:
  • Step S302 the AF selects the accessed AAC according to the priority principle
  • Step S304 the AF sends information to the PCRF through the selected AAC, where the information is used to enable the PCRF to perform policy and charging decisions.
  • the AF can select the AAC and perform corresponding processing through the selected AAC, thereby solving the problem of the related technology that cannot implement the charging and policy control of a certain type of service, and realizing the charging and policy control of the service.
  • the priority principle may be varied, and preferably, two comparisons are provided in the embodiment: the first one is: the AF preferentially accesses the AAC of the nearest network according to the location priority; the second type, the AF According to the subscription priority, priority is given to AAC with high subscription priority. These two methods can be used alone or in combination.
  • the priority of the subscription may be formulated according to different situations.
  • the subscription priority depends on the roaming agreement, and as a preferred method, attribution
  • the signing priority of the local network can be higher than that of the visited network.
  • the AAC may send a message to the DRA; the DRA selects the correct PCRF according to the message; The AF transmits the above information to the PCRF selected by the DRA through the AAC.
  • DRA Diameter Routing Agent
  • the AAC selects a PCRF access of the subscription network; the AF sends the information to the PCRF accessed by the AAC through the AAC.
  • the AAC can also perform subscription information check and/or resource admission control on the AF access network.
  • FIG. 4 is a structural block diagram of an application function entity device according to an embodiment of the present invention. As shown in FIG. 4, the structure includes: a selection module 42 and a sending module 44. The structure will be described below.
  • the selecting module 42 is configured to select an access application access control network element AAC according to the priority principle
  • the sending module 44 is configured to send information to the PCRF through the AAC, where the information is used to cause the PCRF to perform policy and charging decisions.
  • the selection module 42 is configured to preferentially access the AAC of the nearest network according to the location priority; and/or, set to preferentially access the AAC with the highest subscription priority according to the subscription priority.
  • the application access control scheme in the user roaming scenario is provided, so that the user can use the third-party service independent of the visited network and the home network in the roaming scenario.
  • a third-party AF initiates an AF session through the AAC:
  • the AF preferentially accesses the AAC of the nearest deployed network according to the deployment priority; and/or,
  • the AF preferentially accesses the AAC with the highest priority of the subscription according to the priority of the contract (for example, when the visited network and the home network are simultaneously signed and the priority of the home network is high, the access is preferentially accessed from the home network AAC);
  • the AF initiates an AF session establishment request to the HPCRF through the AAC, and the request message carries the service information.
  • the HPCRF or VPCRF performs policy and charging decisions based on the information carried by the request message (for the service requested by the AF).
  • the AAC needs to perform PCRF selection through the DRA, and follows the prior art selection, that is, the AAC sends the request to the DRA, and the DRA selects correctly according to the UE ID/IP and the PDN identifier.
  • PCRF PCRF.
  • the UE ID here refers to the identity of the operator's subscriber, such as the MSISDN or IMSI number.
  • FIG 5-1 and Figure 5-2 show the schematic diagram of the third-party data application provider (AF) accessing the AAC architecture based on the location priority in the roaming LBO and HR scenarios.
  • AF third-party data application provider
  • the AAC can perform subscription check and resource admission control on the AF access mobile network.
  • the AAC can check the subscription information of the network and the AF, and the AAC can obtain the subscription information obtained through the internal storage or the subscription database, such as the AF list.
  • the AAC can perform resource adaptation or service according to the user priority. Refuse to wait for admission control.
  • FIG. 6 is a flowchart of an embodiment of a third-party data application provider accessing an AAC architecture according to a location-first priority. As shown in FIG. 6, the AF accesses the AAC, initiates an AF session through the AAC, and triggers an IP-CAN session modification. The process specifically includes the following steps:
  • Step S601 in the process of the UE requesting to establish an IP-CAN session, the gateway where the PCEF is located receives the IP-CAN session establishment request message, where the IP-CAN session establishment request message carries the user identifier and requests for access. PDN ID of the PDN network.
  • step S602 the PCEF sends an IP-CAN session establishment indication message to the PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, and the IP address allocated for the UE.
  • Step S603 After determining, according to the user identifier, the PCRF does not have the subscription information of the user, and sends a subscription document request to the SPR, and carries the user identifier and the PDN identifier in the subscription document request.
  • Step S604 the SPR returns the corresponding user subscription information according to the user identifier and the PDN identifier (returned by the subscription document response).
  • Step S605 the PCRF makes a policy decision according to the returned user subscription information, the network policy, and the access information of the UE. Among them, it may include formulating PCC rules and event triggers.
  • Step S606 The PCRF sends an IP-CAN session establishment confirmation message to the PCEF, where the IP-CAN session establishment confirmation message carries a PCC rule and an event trigger.
  • Step S607 the PCEF installation policy, the gateway where the PCEF is located returns an IP-CAN session establishment response to the UE, where the IP-CAN session establishment response carries an IP address.
  • Step S608 if it is online charging, the PCEF sends a CCR message to the OCS, activates the online charging session, provides corresponding input information to the OCS for decision, and the PCEF carries the charging key, or the Charging key & service ID, to the OCS to request the credit information.
  • Step S609 the OCS decides whether to provide the credit authorization information to the PCEF according to the request message and the subscription information, and returns the information to the PCEF in the CCA message.
  • Step S610 The UE connects to the AS/AF of the third-party data application provider and requests the service, and the AS/AF sends an AF session request to the AAC to trigger the establishment of the AF session with the PCRF.
  • the request message carries service information such as a UE ID, a UE IP, and a service data flow description.
  • the third-party application provider AF initiates a request to the AAC that deploys the highest priority carrier network according to the deployment (eg, topology or geographic location) priority principle (eg, the geographical location is closest or the topology relationship is the closest).
  • the agreement between 3rd Party AF and AAC is not limited here; for example, it can be SOAP or restful protocol.
  • the carrier network where the AAC is located is not limited to the home network or the visited network of the UE, and may be a third-party carrier network other than the two; the network with the highest priority is the home or visited network.
  • the scenario is directly connected to the home or visited network AAC.
  • step S611 the third-party network AAC sends an AF session establishment request to the HPCRF, where the message carries the content carried in the S610.
  • the home network AAC can be used as a proxy route access of the third-party network AAC and the HPCRF, depending on operational requirements and network deployment;
  • Step S612 the HPCRF performs policy decision according to the AF session information, the service provider information, the charging information and the like, the AF session information, the subscription information provided by the SPR, and the IP-CAN session information provided by the PCEF, and determines whether to authorize the service. QoS and generation of PCC rules, generating corresponding rules and corresponding subscription events. If the AF usage threshold is provided or the usage monitoring of the service is signed, the PCEF also needs to send the usage monitoring keyword and the threshold to monitor the usage of the service;
  • the HPCRF rejects the authorization, the HPCRF returns a reject message to the AAC, the AF service fails, and the process ends.
  • step S613 the HPCRF provides the PCC rule installation and execution to the PCEF, and the RAR message sent to the PCEF carries the rule and event subscription generated in step S612, and the related usage monitoring related information, which is specifically described in S612.
  • Step S614 after the PCEF installs and executes the policy, returns a confirmation message to the H-PCRF;
  • Step S615 the PCEF performs rule matching and bearer modification or creation of an IP-CAN session modification process according to the received rule and event information; if the PCRF or AF subscribes to the rule execution result or the resource allocation result feedback, the PCEF will initiate The CCR message will report the execution result;
  • the user can use the third-party service in the roaming scenario
  • the AAC AF request is sent to the H-DRA, and the H-DRA selects the correct HPCRF according to the UE ID/IP and PDN identifiers (for example, IP- PCRF) associated with the CAN session; for the visited DRA scenario, if the third-party AAC accesses from the VPCRF, the VPCRF selection is required.
  • the AAC sends a request to the VDRA.
  • the VDRA selects the correct VPCRF according to the UE ID/IP and PDN identifiers. .
  • the UE ID here refers to the identity of the operator's subscriber, such as the MSISDN or IMSI number.
  • the third-party AAC can select according to the priority selection of the two (for example, preferentially selecting the home network HPCRF); this embodiment does not limit the AAC to determine whether the subscription is signed or not. For example, the AAC can determine that the IP address of the visited access scene is allocated by the visited network, and the IP address of the home access scene is allocated by the home network, so that the roaming scenario can be distinguished.
  • the third-party AAC selects the PCRF access of the subscription network. If the VPCRF accesses the visited network, the VPCRF interacts with the HPCRF through the S9 interface to transmit the AF service information to the HPCRF for policy decision.
  • the HPCRF returns the relevant rules and usage thresholds for decision production and various event subscriptions to the VPCRF to the GW for installation and execution through the S9 interface.
  • the service information can be transmitted to the PCRF for decision based on the S9 interface or the Gx interface of the DRA route according to the roaming protocol of the third-party network and the home network/visit network.
  • Figure 7-1, 7-2, and 7-3 are for the roaming visited access LBO and the home access HR scenario respectively.
  • the third-party data application (AF) preferentially accesses the contracted relationship according to the agreement/collaboration.
  • Figure 7-1 shows the architecture of the AF in the LBO scenario, where the AF is only signed in the visited network, and the AF accesses the visited AAC.
  • Figure 7-2 shows the AF contract in the home network or the simultaneous subscription and attribution.
  • FIG. 7-3 is the HR scenario, AF contracted The home network or the simultaneous subscription and home network, the AF accesses the architecture diagram of the home AAC.
  • the AF has no contract with the attribution and the visited place, and the architecture of the contract with the third-party network and AF access to the third-party network AAC is shown in Figures 7-1 and 7-2.
  • the AAC can be directly routed to the AAC, and the AAC can route the AF access mobile network.
  • the AAC may perform subscription checking and resource admission control on the AF access mobile network. For example, the AAC may check the subscription information of the network and the AF, and the AAC may obtain the subscription information obtained through the internal storage or the subscription database, such as the AF list.
  • resource admission control is performed on the overall QoS of the AF contract, for example, when the current total number of users or the total bandwidth or total usage of the AF exceeds the subscription value, the AAC may be based on User priority is used for admission control such as resource adaptation or service rejection.
  • FIG. 8 is a flowchart of an embodiment of a third-party data application provider preferentially accessing an AAC architecture according to a contracting relationship (for example, a collaboration relationship).
  • a contracting relationship for example, a collaboration relationship.
  • the AF has the highest subscription priority according to the collaboration priority.
  • the AAC of the network initiates an AF session through the AAC, and the process of triggering the IP-CAN session modification includes the following steps:
  • Step S801 in the process of the UE requesting to establish an IP-CAN session, the gateway where the PCEF is located receives the IP-CAN session establishment request message, where the IP-CAN session establishment request message carries the user identifier and requests for access. PDN ID of the PDN network.
  • step S802 the PCEF sends an IP-CAN session establishment indication message to the PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, and the IP address allocated for the UE.
  • Step S803 After determining, according to the user identifier, the PCRF does not have the subscription information of the user, and sends a subscription document request to the SPR, and carries the user identifier and the PDN identifier in the subscription document request.
  • Step S804 the SPR returns the corresponding user subscription information according to the user identifier and the PDN identifier.
  • Step S805 the PCRF makes a policy decision according to the returned user subscription information, the network policy, and the access information of the UE. Among them, it may include formulating PCC rules and event triggers.
  • Step S806 the PCRF sends an IP-CAN session establishment confirmation message to the PCEF, where the IP-CAN session establishment confirmation message carries a PCC rule and an event trigger.
  • Step S807 the PCEF installs the policy, and the gateway where the PCEF is located returns an IP-CAN session establishment response to the UE, where the IP-CAN session establishment response carries an IP address.
  • Step S808 if it is online charging, the PCEF sends a CCR message to the OCS, activates the online charging session, provides corresponding input information to the OCS for decision, and the PCEF carries the charging key, or the Charging key & service ID, to the OCS to request the credit information.
  • Step S809 the OCS decides whether to provide the credit authorization information to the PCEF according to the request message and the subscription information, and returns the information to the PCEF in the CCA message.
  • Step S810 the UE connects to the AS/AF of the third-party data application provider and requests the service, and the AS/AF sends an AF session request to the AAC, triggering the establishment of the AF session with the PCRF.
  • the request message carries service information such as a UE ID, a UE IP, and a service data flow description.
  • the third-party application provider AF initiates a request to the AAC of the contracted carrier network according to the contract relationship and the contract priority according to the contract relationship priority (for example, the home network and the visited network simultaneously sign, attribution
  • the network takes precedence over visiting the network, or the visited network takes precedence over the home network).
  • the communication protocol between the 3rd Party AF and the AAC is not limited; for example, it may be a SOAP or a restful protocol.
  • the operator network in which the AAC is located is not limited to the home network or the visited network of the UE, and may be a third-party carrier network other than the two; for the AAC home network, that is, the home or visited network, It can directly access the home or visited network PCRF.
  • step S811 the third-party network AAC sends an AF session establishment request to the HPCRF, where the message carries the content carried in S810.
  • the home network AAC can be used as a proxy route access of the third-party network AAC and the HPCRF, depending on operational requirements and network deployment;
  • Step S812 the HPCRF performs policy decision according to the AF session information such as service information, service provider information, and charging information provided by the AAC, the subscription information provided by the SPR, and the IP-CAN session information provided by the PCEF, and determines whether to authorize the service.
  • the AF session information such as service information, service provider information, and charging information provided by the AAC
  • the subscription information provided by the SPR the subscription information provided by the SPR
  • the IP-CAN session information provided by the PCEF determines whether to authorize the service.
  • QoS and generation of PCC rules generating corresponding rules and corresponding subscription events. If the AF/AAC usage threshold is provided or the usage monitoring of the service is contracted, the PCEF also needs to send the usage monitoring keyword and the threshold to monitor the usage of the service;
  • the HPCRF rejects the authorization, the HPCRF returns a reject message to the AAC, the AF service fails, and the process ends.
  • step S813 the HPCRF provides PCC rule installation and execution to the PCEF, and the RAR message sent to the PCEF carries the rule and event subscription generated in step S812, and the related usage monitoring related information, which is specifically described in S812.
  • Step S814 after the PCEF installs and executes the policy, returns a confirmation message to the H-PCRF;
  • Step S815 the PCEF performs rule matching and bearer modification or creation of an IP-CAN session modification process according to the received rule and event information; if the PCRF or AF subscribes to the rule execution result or the resource allocation result feedback, the PCEF will initiate The CCR message will report the execution result;
  • the user can use the third-party service in the roaming scenario
  • the AAC AF request is sent to the H-DRA, and the H-DRA selects the correct HPCRF according to the UE ID/IP and PDN identifiers (for example, IP- PCRF) associated with the CAN session; for the visited DRA scenario, if the third-party AAC accesses from the VPCRF, the VPCRF selection is required.
  • the AAC sends the request to the VDRA, VDRA.
  • the correct VPCRF is selected according to the UE ID/IP and PDN identification.
  • the UE ID here refers to the identity of the operator's subscriber, such as the MSISDN or IMSI number.
  • the third-party AAC may select the PCRF access according to the default priority (for example, preferentially selecting the home network); this embodiment does not limit the implementation of the AAC to determine whether the subscription is successful or not. For example, the AAC can determine that the IP address of the visited access scene is allocated by the visited network, and the IP address of the home access scene is allocated by the home network, thereby distinguishing the roaming scenario.
  • the third-party AAC selects the PCRF access of the subscription network. If the visited network is connected to the VPCRF, the VPCRF interacts with the HPCRF through the S9 interface to transmit the AF service information to the HPCRF for policy decision.
  • the HPCRF returns the relevant rules and usage thresholds of the decision production and the various event subscriptions to the VPCRF to the GW installation and execution through the S9 interface; or the VPCRF local policy decision and the rule generation and delivery to the GW installation and execution.
  • the scenario where the visited place and the attribution are not signed only the scenario of signing the third-party network can be transmitted according to the roaming agreement of the third-party network and the home network/visiting network, based on the inter-network S9 interface or the Gx-port inter-network DRA routing mode. Business information is given to the HPCRF/VPCRF decision.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in a storage device by a computing device, or they may be fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the foregoing embodiments and preferred embodiments solve the problem that the related technologies cannot implement charging and policy control of a certain type of service, and implement charging and policy control of services.

Abstract

Disclosed are an application access control method and an application function entity apparatus. The method comprises: an application function (AF) selecting an accessed application access control network element AAC according to a priority rule; and the AF sending information to a PCRF through the AAC, the information being used for making the PCRF execute policy and charging decision. The present invention solves the charging and policy control problem of a certain type of service that cannot be realized by relevant technologies.

Description

应用接入控制方法及应用功能实体装置Application access control method and application functional entity device 技术领域Technical field
本发明涉及通信领域，具体而言，涉及应用接入控制方法及应用功能实体装置。The present invention relates to the field of communications, and in particular to an application access control method and an application function entity device.
背景技术Background technique
策略控制和计费控制功能(Policy and Charging Control，简称为PCC)各功能实体：策略和计费规则功能实体(Policy and Charging Rules Function，简称为PCRF)，策略和计费执行功能实体(Policy and Charging Enforcement Function，简称为PCEF)存在于分组数据网络网关(Packet Data Network Gateway，简称为P-GW或者PDN GW)中，承载绑定和事件报告功能实体(Bearer Binding and Event Report Function，简称为BBERF)可存在于服务网关(Serving Gateway，简称为S-GW)中，业务的应用功能实体(Application Function，简称为AF)存在于运营商网络协议(Internet Protocol，简称为IP)业务网络，用户签约数据库(Subscription Profile Repository，简称为SPR)可与归属用户服务器(Home Subscriber Server，简称为HSS)合一。PCC通过以上功能实体实现对UE为访问一个分组数据网络(Packet Data Network，简称为PDN)所建立的IP连接接入网(IP Connectivity Access Network，简称为IP-CAN)会话的策略计费控制。Policy and Charging Control (PCC) functional entities: Policy and Charging Rules Function (PCRF), Policy and Charging Enforcement Function (Policy and The Charging Enforcement Function (PCEF) is present in the Packet Data Network Gateway (P-GW or PDN GW). The Bearer Binding and Event Report Function (BBERF) is called BBERF. It can exist in the Serving Gateway (S-GW), and the application function entity (Application Function, AF for short) exists in the service network protocol (IP) network. The Subscription Profile Repository (SPR) can be combined with the Home Subscriber Server (HSS). The PCC implements policy charging control for an IP Connectivity Access Network (IP-CAN) session established by the UE to access a Packet Data Network (PDN) through the above functional entity.
图1是根据相关技术的PCC非漫游架构的示意图，如图1所示，PCRF主要负责策略和计费规则的制定，通过Gx接口将制定的PCC策略和计费规则下发给PCEF，PCEF安装、执行PCC策略，并上报相关事件，与计费***交互计费信息。AF通过Rx接口向PCRF提供业务信息，SPR保存了用户签约的业务信息，PCRF可以通过Sp接口向SPR查询用户签约的业务信息。PCEF通过Gy接口将在线计费信息发送给在线计费***(Online Charging System，简称为OSC)负责在线计费的统计，通过Gz接口将离线计费信息发送给离线计费***(Offline Charging System，简称为OFCS)。PCEF也可增强应用检测功能(Application Detection Control，简称为ADC)。业务检测功能(Traffic Detection Function，简称为TDF)与PCRF通过Sd接口连接，TDF可根据预配置或PCRF下发的应用检测控制规则进行应用检测和策略执行。FIG. 1 is a schematic diagram of a PCC non-roaming architecture according to the related art. As shown in FIG. 1 , the PCRF is mainly responsible for formulating policy and charging rules, and the PCC policy and charging rules are sent to the PCEF through the Gx interface, and the PCEF is installed. Execute a PCC policy, report related events, and exchange billing information with the billing system. The AF provides the service information to the PCRF through the Rx interface, and the SPR stores the service information subscribed by the user. The PCRF can query the SPR for the service information subscribed by the user through the Sp interface. The PCEF sends the online charging information to the online charging system (OSC) through the Gy interface to calculate the online charging statistics, and sends the offline charging information to the offline charging system through the Gz interface (Offline Charging System, Referred to as OFCS). PCEF also enhances Application Detection Control (ADC). The traffic detection function (Traffic Detection Function, TDF for short) is connected to the PCRF through the Sd interface. The TDF can perform application detection and policy execution according to the application detection control rules delivered by the pre-configuration or PCRF.
在相关技术中，UE建立到某个PDN的IP-CAN会话后，网络按相应授权的QoS为其提供默认签约的资源。对于IMS类业务，则AF将提供新的QoS信息给PCRF，PCRF发起IP-CAN会话修改流程，为该业务提供资源授权。对于第三方业务和非IMS 类业务，第三方应用提供商和PCRF之间没有接口(例如Rx接口)，无法提供业务资源授权所需要的业务信息给PCRF。一种改进的方式是在第三方数据应用提供方和运营网络PCRF之间部署一个用于对第三方引用执行应用接入控制的网元，图2是根据相关技术中部署AAC功能的PCC非漫游架构示意图，如图2所示，该应用接入控制网元和第三方之间的Rx接口可以使用例如SOAP或restful协议通信，和PCRF之间的Rx接口可采用基于Diameter或xml协议通信。该应用接入控制网元(application access control，简称为AAC)兼具协议转换(Protocol Converter，简称为PC)功能，可实现第三方数据应用提供商和PCRF之间的协议转换，完成应用提供商信息、业务信息、QoS需求和计费信息的传送。In the related art, after the UE establishes an IP-CAN session to a certain PDN, the network provides a default subscription resource according to the corresponding authorized QoS. For IMS-type services, the AF will provide new QoS information to the PCRF, and the PCRF initiates an IP-CAN session modification procedure to provide resource authorization for the service. For third party services and non-IMS There is no interface (such as the Rx interface) between the third-party application provider and the PCRF, and the service information required for the authorization of the service resource cannot be provided to the PCRF. An improved method is to deploy a network element for performing application access control on a third-party reference between a third-party data application provider and an operation network PCRF, and FIG. 2 is a PCC non-roaming according to the related art. Schematic diagram of the architecture, as shown in FIG. 2, the Rx interface between the application access control network element and the third party can communicate using, for example, a SOAP or restful protocol, and the Rx interface between the PCRFs can communicate based on the Diameter or xml protocol. The application access control network element (application access control, AAC for short) and the protocol converter (PC) function can implement protocol conversion between the third-party data application provider and the PCRF, and complete the application provider. Delivery of information, business information, QoS requirements, and billing information.
发明人发现，以上增强后的架构中应用接入控制功能部署在用户归属网络，当用户漫游到其它网络，网络中存在可供用户选择的业务不仅归属网络签约的第三方业务，还包括拜访地签约的第三方业务，以及签约于拜访地和归属地之外的第三方网络的业务。则需要解决漫游场景下实现该类业务的开展和业务的计费和策略控制的问题。例如第三方业务签约由运营商代理第三方收费的计费需求，如果签约运营商网络不是用户归属网络或拜访网络则现有PCC漫游架构无法支持该业务满足该类需求。例如第三方业务签约由特定运营商代理其对全部移动运营商网络的安全接入，代理对其根据自有用户等级区分资源授权和计费代理的需求，则无法从归属地地AAC直接接入。总之，如何支持这类漫游场景下用户的第三方数据应用业务的开展，满足漫游场景下的上述业务的开展和运营商需求，成为了需要解决的问题。The inventor has found that the application access control function is deployed in the user home network in the above enhanced architecture. When the user roams to other networks, the service available for the user in the network not only belongs to the third party service subscribed by the network, but also includes the visited place. The contracted third-party business, as well as the business of signing a third-party network outside the visited place and the place of attribution. The problem of implementing the service and charging and policy control of the service in the roaming scenario needs to be solved. For example, a third-party service contracting requires the operator to charge a third-party charging requirement. If the contracted carrier network is not the user's home network or the visited network, the existing PCC roaming architecture cannot support the service to meet such requirements. For example, a third-party service contract is represented by a specific operator for its secure access to all mobile operator networks. The agent cannot directly access the AAC from the home location by distinguishing the requirements of the resource authorization and charging agent according to the own user level. . In summary, how to support the development of third-party data application services of users in such roaming scenarios and meet the requirements of the above-mentioned services and operators in the roaming scenario has become a problem to be solved.
针对相关技术中漫游场景下无法实现上述类型业务的计费和策略控制的问题，至今没有提出任何解决方案。For the problem that the charging and policy control of the above types of services cannot be implemented in the roaming scenario in the related art, no solution has been proposed so far.
发明内容Summary of the invention
本发明提供了应用接入控制方法及应用功能实体装置，以至少解决相关技术的无法实现某种类型业务的计费和策略控制的问题。The present invention provides an application access control method and an application function entity device to solve at least the problem of related technologies that cannot implement charging and policy control of a certain type of service.
根据本发明的一个方面，提供了一种应用接入控制方法，包括：应用功能实体AF根据优先级原则，选择接入的应用接入控制网元AAC；所述AF通过所述AAC向PCRF发送信息，其中，所述信息用于使策略和计费规则功能实体PCRF执行策略和计费决策。 According to an aspect of the present invention, an application access control method is provided, including: an application function entity AF selects an access application access control network element AAC according to a priority principle; and the AF sends the PCR to the PCRF through the AAC. Information, wherein the information is used to cause the policy and charging rules function entity PCRF to perform policy and charging decisions.
优选地，所述AF根据所述优先级原则选择接入AAC包括：所述AF根据位置优先级，优先接入就近网络的AAC；和/或，所述AF根据签约优先级，优先接入签约优先级高的AAC。Preferably, the selecting, by the AF, the accessing the AAC according to the priority principle includes: the AF preferentially accessing the AAC of the nearest network according to the location priority; and/or the AF preferentially accessing the subscription according to the subscription priority AAC with a high priority.
优选地，在用户设备的归属地网络和拜访地网络同时签约的情况下，所述签约优先级取决于漫游协议。Preferably, in the case that the home network of the user equipment and the visited network are simultaneously contracted, the subscription priority depends on the roaming agreement.
优选地，在部署路由代理DRA的情况下，所述AF通过所述AAC向所述PCRF发送所述业务信息的步骤包括：所述AAC向所述DRA发送消息；所述DRA根据所述消息选择正确的PCRF；所述AF通过所述AAC向所述DRA选择的PCRF发送所述信息。Preferably, in the case of deploying the routing agent DRA, the step of the AF transmitting the service information to the PCRF by using the AAC includes: the AAC sending a message to the DRA; the DRA selecting according to the message The correct PCRF; the AF sends the information to the PCRF selected by the DRA through the AAC.
优选地，所述AF通过所述AAC向所述PCRF发送所述业务信息的步骤包括：在所述归属地网络或者所述拜访地网络签约的情况下，所述AAC选择签约网络的PCRF接入；所述AF通过所述AAC向所述AAC接入的PCRF发送所述信息。Preferably, the step of the AF transmitting the service information to the PCRF by using the AAC includes: in the case that the home network or the visited network is subscribed, the AAC selects a PCRF access of the subscription network. The AF sends the information to the PCRF accessed by the AAC through the AAC.
优选地，所述方法还包括：所述AAC对所述AF接入网络进行签约信息检查和/或资源接纳控制。Preferably, the method further includes: the AAC performing subscription information check and/or resource admission control on the AF access network.
根据本发明的另一个方面，还提供了一种应用功能实体装置，包括：选择模块，设置为根据优先级原则，选择接入的应用接入控制网元AAC；发送模块，设置为通过所述AAC向PCRF发送信息，其中，所述信息用于使PCRF执行策略和计费决策。According to another aspect of the present invention, an application function entity device is further provided, comprising: a selection module, configured to select an access application access control network element AAC according to a priority principle; and a sending module configured to pass the The AAC sends information to the PCRF, where the information is used to cause the PCRF to perform policy and charging decisions.
优选地，所述选择模块设置为根据位置优先级，优先接入就近网络的AAC；和/或，设置为根据签约优先级，优先接入签约优先级高的AAC。Preferably, the selecting module is configured to preferentially access the AAC of the nearest network according to the location priority; and/or, set to preferentially access the AAC with the highest subscription priority according to the subscription priority.
优选地，在用户设备的归属地网络和拜访地网络同时签约的情况下，所述签约优先级取决于漫游协议。Preferably, in the case that the home network of the user equipment and the visited network are simultaneously contracted, the subscription priority depends on the roaming agreement.
优选地，在部署路由代理DRA的情况下，发送模块，设置为通过所述AAC向所述DRA选择的正确的PCRF发送信息，其中，所述信息用于使PCRF执行策略和计费决策，所述DRA是根据所述AAC发送的消息来选择所述正确的PCRF的。Preferably, in the case of deploying the routing agent DRA, the sending module is configured to send information to the correct PCRF selected by the AAC to the DRA, wherein the information is used to enable the PCRF to perform policy and charging decisions. The DRA is based on the message sent by the AAC to select the correct PCRF.
通过本发明，采用应用功能实体AF根据优先级原则，选择接入的应用接入控制网元AAC；该AF通过该AAC向PCRF发送信息，其中，该信息用于使PCRF执行策略和计费决策。解决相关技术的无法实现某种类型业务的计费和策略控制的问题，实现了业务的计费和策略控制。 According to the present invention, the application function entity AF is selected according to the priority principle, and the accessed application access control network element AAC is selected; the AF sends information to the PCRF through the AAC, where the information is used to enable the PCRF to perform policy and charging decisions. . The problem of charging and policy control of a certain type of service cannot be realized by the related technology, and the billing and policy control of the service is realized.
附图说明DRAWINGS
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:
图1是根据相关技术的PCC非漫游架构的示意图；1 is a schematic diagram of a PCC non-roaming architecture according to the related art;
图2是根据相关技术中部署AAC功能的PCC非漫游架构示意图；2 is a schematic diagram of a PCC non-roaming architecture according to the related art in which an AAC function is deployed;
图3是根据本发明实施例的应用接入控制方法的流程图；FIG. 3 is a flowchart of an application access control method according to an embodiment of the present invention; FIG.
图4是根据本发明实施例的应用功能实体装置的结构框图；4 is a structural block diagram of an application function entity device according to an embodiment of the present invention;
图5-1是根据本发明实施例的AF就近接入AAC架构示意图(LBO)；5-1 is a schematic diagram (LBO) of an AF access proximity AAC architecture according to an embodiment of the present invention;
图5-2是根据本发明实施例的AF就近接入AAC架构示意图(HR)；5-2 is a schematic diagram (HR) of an AF proximity access AAC architecture according to an embodiment of the present invention;
图6是根据本发明实施例的根据位置优先关系接入AAC架构下，AF通过3rd partyAAC发起AF会话，触发IP-CAN会话修改的流程示意图；FIG. 6 is a schematic flowchart of triggering an IP session of an IP-CAN session by an AF initiating an AF session through a 3rd party AAC according to a location priority relationship according to an embodiment of the present invention;
图7-1是根据本发明实施例的根据位置就近接入AAC架构下，AF根据签约关系接入拜访地AAC架构示意图(LBO)；FIG. 7-1 is a schematic diagram of an AAC architecture (LBO) for accessing a visited location according to a subscription relationship according to a location-to-access AAC architecture according to an embodiment of the present invention;
图7-2是根据本发明实施例的AF根据签约关系接入归属地AAC架构示意图(LBO)；7-2 is a schematic diagram (LBO) of accessing an AAC architecture of an AF according to a subscription relationship according to an embodiment of the present invention;
图7-3是根据本发明实施例的AF根据签约关系接入归属地AAC架构示意图(HR)；7-3 is a schematic diagram (HR) of an AAC architecture in which an AF accesses a home according to a subscription relationship according to an embodiment of the present invention;
图8是根据本发明实施例的根据签约优先关系接入AAC架构下，AF通过HAAC发起AF会话，触发IP-CAN会话修改的流程示意图。FIG. 8 is a schematic diagram of a process of triggering an AF session through an HAAC and triggering an IP-CAN session modification according to a subscription priority relationship according to an embodiment of the present invention.
具体实施方式detailed description
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.
在本实施例中，提供了一种应用接入控制方法，图3是根据本发明实施例的应用接入控制方法的流程图，如图3所示，该流程包括如下步骤： In this embodiment, an application access control method is provided. FIG. 3 is a flowchart of an application access control method according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:
步骤S302，AF根据优先级原则，选择接入的AAC；Step S302, the AF selects the accessed AAC according to the priority principle;
步骤S304，该AF通过选择的AAC向PCRF发送信息，其中，该信息用于使PCRF执行策略和计费决策。Step S304, the AF sends information to the PCRF through the selected AAC, where the information is used to enable the PCRF to perform policy and charging decisions.
通过上述步骤，AF可以选择AAC，并且通过该选择的AAC进行相应的处理，从而解决相关技术的无法实现某种类型业务的计费和策略控制的问题，实现了业务的计费和策略控制。Through the above steps, the AF can select the AAC and perform corresponding processing through the selected AAC, thereby solving the problem of the related technology that cannot implement the charging and policy control of a certain type of service, and realizing the charging and policy control of the service.
优先级原则可以由很多种，优选地，在本实施例中提供了两种比较的优的方式：第一种是：AF根据位置优先级，优先接入就近网络的AAC；第二种，AF根据签约优先级，优先接入签约优先级高的AAC。这两种方式可以单独使用也可以结合使用。The priority principle may be varied, and preferably, two comparisons are provided in the embodiment: the first one is: the AF preferentially accesses the AAC of the nearest network according to the location priority; the second type, the AF According to the subscription priority, priority is given to AAC with high subscription priority. These two methods can be used alone or in combination.
优选地，签约的优先级可以根据不同的情况进行制定，例如，在用户设备的归属地网络和拜访地网络同时签约的情况下，签约优先级取决于漫游协议，作为一个比较优的方式，归属地网络的签约优先级可以高于拜访地网络。Preferably, the priority of the subscription may be formulated according to different situations. For example, in the case that the home network of the user equipment and the visited network are simultaneously signed, the subscription priority depends on the roaming agreement, and as a preferred method, attribution The signing priority of the local network can be higher than that of the visited network.
作为另一个优选实施方式，在需要进行选择PCRF的情况下，并且在部署路由代理(Diameter Routing Agent，简称为DRA)，AAC可以向DRA发送消息；该DRA根据该消息选择正确的PCRF；然后，AF通过AAC向该DRA选择的PCRF发送上述信息。As another preferred embodiment, in the case that a PCRF is required to be selected, and a Diameter Routing Agent (DRA) is deployed, the AAC may send a message to the DRA; the DRA selects the correct PCRF according to the message; The AF transmits the above information to the PCRF selected by the DRA through the AAC.
在另一个优选实施方式中，在该归属地网络或者该拜访地网络签约的情况下，该AAC选择签约网络的PCRF接入；该AF通过该AAC向该AAC接入的PCRF发送该信息。In another preferred embodiment, in the case that the home network or the visited network is subscribed, the AAC selects a PCRF access of the subscription network; the AF sends the information to the PCRF accessed by the AAC through the AAC.
优选地，该AAC还可以对AF接入网络进行签约信息检查和/或资源接纳控制。Preferably, the AAC can also perform subscription information check and/or resource admission control on the AF access network.
在本实施例中，还提供了一种应用功能实体，该装置用于实现上述的方法，在上述实施例及优选实施方式中已经进行过说明的，在此不再赘述。需要说明的是，下述装置中的模块的名称并不构成对该模块的实际限定，例如，选择模块可以表述为“用于根据优先级原则选择接入的应用接入控制网元AAC的模块”。图4是根据本发明实施例的应用功能实体装置的结构框图，如图4所示，该结构包括：选择模块42和发送模块44。下面对该结构进行说明。In this embodiment, an application function entity is also provided, and the device is used to implement the foregoing method, which has been described in the above embodiments and preferred embodiments, and details are not described herein again. It should be noted that the name of the module in the following device does not constitute a practical limitation of the module. For example, the selection module may be expressed as a module for selecting an access control network element AAC for access according to the priority principle. ". FIG. 4 is a structural block diagram of an application function entity device according to an embodiment of the present invention. As shown in FIG. 4, the structure includes: a selection module 42 and a sending module 44. The structure will be described below.
选择模块42，设置为根据优先级原则，选择接入的应用接入控制网元AAC； The selecting module 42 is configured to select an access application access control network element AAC according to the priority principle;
发送模块44，设置为通过AAC向PCRF发送信息，其中，该信息用于使PCRF执行策略和计费决策。The sending module 44 is configured to send information to the PCRF through the AAC, where the information is used to cause the PCRF to perform policy and charging decisions.
优选地，选择模块42设置为根据位置优先级，优先接入就近网络的AAC；和/或，设置为根据签约优先级，优先接入签约优先级高的AAC。Preferably, the selection module 42 is configured to preferentially access the AAC of the nearest network according to the location priority; and/or, set to preferentially access the AAC with the highest subscription priority according to the subscription priority.
以下结合两个优选实施例进行说明。The following description will be made in conjunction with two preferred embodiments.
在如下的两个优选实施例中提供了用户漫游场景下的应用接入控制的方案，使得用户在漫游场景下可以使用独立于拜访地网络和归属地网络的第三方业务。In the following two preferred embodiments, the application access control scheme in the user roaming scenario is provided, so that the user can use the third-party service independent of the visited network and the home network in the roaming scenario.
在如下两个优选实施例中，在漫游场景下，第三方的AF通过AAC发起AF会话的方案：In the following two preferred embodiments, in a roaming scenario, a third-party AF initiates an AF session through the AAC:
(一)AF根据部署(deployment)优先级，优先接入就近部署网络的AAC；和/或，(1) The AF preferentially accesses the AAC of the nearest deployed network according to the deployment priority; and/or,
(二)AF根据签约(collaboration)优先级，优先接入签约优先级高的AAC，(例如,当拜访网络和归属网络同时签约且归属网络优先级高时优先从归属网络AAC接入)；(2) The AF preferentially accesses the AAC with the highest priority of the subscription according to the priority of the contract (for example, when the visited network and the home network are simultaneously signed and the priority of the home network is high, the access is preferentially accessed from the home network AAC);
AF通过AAC向HPCRF发起AF会话建立请求，请求消息中携带业务信息；The AF initiates an AF session establishment request to the HPCRF through the AAC, and the request message carries the service information.
HPCRF或VPCRF依据该请求消息携带的信息(对所述AF请求的业务)执行策略和计费决策。The HPCRF or VPCRF performs policy and charging decisions based on the information carried by the request message (for the service requested by the AF).
优选地，当拜访地或归属地存在多个PCRF部署，AAC需要通过DRA进行PCRF选择时，遵从现有技术选择，即AAC将请求发送给DRA，DRA根据UE ID/IP和PDN标识，选择正确的PCRF。这里的UE ID指运营商签约用户的标识，例如MSISDN或IMSI号码。Preferably, when there are multiple PCRF deployments in the visited or home location, the AAC needs to perform PCRF selection through the DRA, and follows the prior art selection, that is, the AAC sends the request to the DRA, and the DRA selects correctly according to the UE ID/IP and the PDN identifier. PCRF. The UE ID here refers to the identity of the operator's subscriber, such as the MSISDN or IMSI number.
实施例一Embodiment 1
图5-1和5-2分别为漫游LBO和HR场景下，第三方数据应用提供商(AF)根据位置(location)优先级，优先就近接入AAC架构示意图。本架构中该AAC归属的网络和第三方数据应用提供商之间存在签约(collaboration)关系，即AF可直接路由寻址到AAC，AAC可对AF接入移动网络进行路由。可选地，AAC可对AF接入移动网络进行签约检查和资源接纳控制，例如AAC可对该网络与AF的签约信息进行检查，AAC可通过内部存储或签约数据库中获取的签约信息如AF list,ASP ID，AF的用量阈值和 业务费率等签约信息进行检查；对AF签约的整体QoS进行资源接纳控制，例如当AF当前的总用户数或总带宽或总用量超出签约值，AAC可根据用户优先级进行资源适配或业务拒绝等接纳控制。Figure 5-1 and Figure 5-2 show the schematic diagram of the third-party data application provider (AF) accessing the AAC architecture based on the location priority in the roaming LBO and HR scenarios. In this architecture, there is a collaboration relationship between the AAC-owned network and the third-party data application provider, that is, the AF can be directly routed to the AAC, and the AAC can route the AF access mobile network. Optionally, the AAC can perform subscription check and resource admission control on the AF access mobile network. For example, the AAC can check the subscription information of the network and the AF, and the AAC can obtain the subscription information obtained through the internal storage or the subscription database, such as the AF list. , ASP ID, AF usage threshold and Checking the contract information such as the service rate; performing resource admission control on the overall QoS of the AF contract. For example, when the current total number of users or total bandwidth or total usage of the AF exceeds the subscription value, the AAC can perform resource adaptation or service according to the user priority. Refuse to wait for admission control.
图6为本实施例第三方数据应用提供商根据位置优先就近接入AAC架构的实施例流程图，如图6所示，AF就近接入AAC，通过AAC发起AF会话，触发IP-CAN会话修改的流程具体包括以下步骤：FIG. 6 is a flowchart of an embodiment of a third-party data application provider accessing an AAC architecture according to a location-first priority. As shown in FIG. 6, the AF accesses the AAC, initiates an AF session through the AAC, and triggers an IP-CAN session modification. The process specifically includes the following steps:
步骤S601，在UE请求建立IP-CAN会话的过程中，PCEF位于的网关接收到IP-CAN会话建立请求消息，其中，在该IP-CAN会话建立请求消息中携带有用户标识和请求接入的PDN网络的PDN标识。Step S601, in the process of the UE requesting to establish an IP-CAN session, the gateway where the PCEF is located receives the IP-CAN session establishment request message, where the IP-CAN session establishment request message carries the user identifier and requests for access. PDN ID of the PDN network.
步骤S602，PCEF向PCRF发送IP-CAN会话建立指示消息，其中，该IP-CAN会话建立指示消息中携带用户标识、PDN标识以及为UE分配的IP地址。In step S602, the PCEF sends an IP-CAN session establishment indication message to the PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, and the IP address allocated for the UE.
步骤S603，PCRF根据用户标识判断出还没有该用户的签约信息后，向SPR发送签约文档请求，并在该签约文档请求中携带用户标识和PDN标识。Step S603: After determining, according to the user identifier, the PCRF does not have the subscription information of the user, and sends a subscription document request to the SPR, and carries the user identifier and the PDN identifier in the subscription document request.
步骤S604，SPR根据用户标识和PDN标识返回对应的用户签约信息(通过签约文档应答返回)。Step S604, the SPR returns the corresponding user subscription information according to the user identifier and the PDN identifier (returned by the subscription document response).
步骤S605，PCRF根据返回的用户签约信息、网络策略、UE的接入信息等制定策略决策。其中，可以包括制定PCC规则和事件触发器。Step S605, the PCRF makes a policy decision according to the returned user subscription information, the network policy, and the access information of the UE. Among them, it may include formulating PCC rules and event triggers.
步骤S606，PCRF向PCEF发送IP-CAN会话建立确认消息，其中，该IP-CAN会话建立确认消息中携带PCC规则，事件触发器。Step S606: The PCRF sends an IP-CAN session establishment confirmation message to the PCEF, where the IP-CAN session establishment confirmation message carries a PCC rule and an event trigger.
步骤S607，PCEF安装策略，PCEF位于的网关向UE返回IP-CAN会话建立应答，其中，该IP-CAN会话建立应答中携带有IP地址。Step S607, the PCEF installation policy, the gateway where the PCEF is located returns an IP-CAN session establishment response to the UE, where the IP-CAN session establishment response carries an IP address.
步骤S608，如果是在线计费，PCEF发送CCR消息给OCS，激活在线计费会话，提供相应的输入信息给OCS进行决策，PCEF携带charging key，或Charging key & service ID给OCS请求信用信息。Step S608, if it is online charging, the PCEF sends a CCR message to the OCS, activates the online charging session, provides corresponding input information to the OCS for decision, and the PCEF carries the charging key, or the Charging key & service ID, to the OCS to request the credit information.
步骤S609，OCS根据请求消息和签约信息决策是否向PCEF提供信用授权信息，在CCA消息中返回给PCEF。 Step S609, the OCS decides whether to provide the credit authorization information to the PCEF according to the request message and the subscription information, and returns the information to the PCEF in the CCA message.
步骤S610，UE与第三方数据应用提供商的AS/AF连接并请求业务，该AS/AF向AAC发送AF会话请求，触发建立与PCRF的AF会话。请求消息中携带UE ID、UE IP、业务数据流描述等业务信息。Step S610: The UE connects to the AS/AF of the third-party data application provider and requests the service, and the AS/AF sends an AF session request to the AAC to trigger the establishment of the AF session with the PCRF. The request message carries service information such as a UE ID, a UE IP, and a service data flow description.
第三方应用提供商AF根据部署(例如拓扑结构或地理位置)优先原则，向其部署优先级最高的运营商网络的AAC发起请求(例如，地理位置最近或拓扑关系最近)。这里3rd Party AF和AAC之间的协议不做限定；举例可以为SOAP或restful协议等。该AAC所在的运营商网络，不限定为该UE的归属地网络或拜访地网络，可以为两者之外的第三方运营商网络；对于部署优先级最高的网络即为归属地或拜访地网络的场景，则直接接入归属地或拜访地网络AAC。The third-party application provider AF initiates a request to the AAC that deploys the highest priority carrier network according to the deployment (eg, topology or geographic location) priority principle (eg, the geographical location is closest or the topology relationship is the closest). The agreement between 3rd Party AF and AAC is not limited here; for example, it can be SOAP or restful protocol. The carrier network where the AAC is located is not limited to the home network or the visited network of the UE, and may be a third-party carrier network other than the two; the network with the highest priority is the home or visited network. The scenario is directly connected to the home or visited network AAC.
步骤S611，第三方网络AAC向HPCRF发送AF会话建立请求，消息中携带S610中携带的内容；In step S611, the third-party network AAC sends an AF session establishment request to the HPCRF, where the message carries the content carried in the S610.
可选地，归属网络AAC可以作为第三方网络AAC和HPCRF的proxy路由接入，具体取决于运营需求和网络部署；Optionally, the home network AAC can be used as a proxy route access of the third-party network AAC and the HPCRF, depending on operational requirements and network deployment;
步骤S612，HPCRF根据AAC提供的业务信息、业务提供商信息、计费信息等AF会话信息，SPR提供的签约信息，以及PCEF提供的IP-CAN会话信息，进行策略决策，决策是否对该业务授权QoS和生成PCC规则，生成相应规则以及相应订阅事件。若AF有用量阈值提供或是签约了该业务的用量监控则还需要同时给PCEF下发用量监控关键字和阈值对该业务进行用量监控；Step S612, the HPCRF performs policy decision according to the AF session information, the service provider information, the charging information and the like, the AF session information, the subscription information provided by the SPR, and the IP-CAN session information provided by the PCEF, and determines whether to authorize the service. QoS and generation of PCC rules, generating corresponding rules and corresponding subscription events. If the AF usage threshold is provided or the usage monitoring of the service is signed, the PCEF also needs to send the usage monitoring keyword and the threshold to monitor the usage of the service;
若HPCRF拒绝授权，那么HPCRF向AAC返回拒绝消息，AF业务失败，流程结束；If the HPCRF rejects the authorization, the HPCRF returns a reject message to the AAC, the AF service fails, and the process ends.
步骤S613，HPCRF向PCEF提供PCC规则安装执行，给PCEF的RAR消息中携带步骤S612中生成的规则和事件订阅，以及可能的用量监控相关信息，具体如S612详细描述；In step S613, the HPCRF provides the PCC rule installation and execution to the PCEF, and the RAR message sent to the PCEF carries the rule and event subscription generated in step S612, and the related usage monitoring related information, which is specifically described in S612.
步骤S614，PCEF安装并执行策略后，向H-PCRF返回确认消息；Step S614, after the PCEF installs and executes the policy, returns a confirmation message to the H-PCRF;
步骤S615，PCEF根据接收到的规则和事件信息，执行规则匹配以及承载修改或创建等IP-CAN会话的修改流程处理；若PCRF或AF订阅了规则执行结果或资源分配结果反馈，则PCEF将发起CCR消息将执行结果上报；Step S615, the PCEF performs rule matching and bearer modification or creation of an IP-CAN session modification process according to the received rule and event information; if the PCRF or AF subscribes to the rule execution result or the resource allocation result feedback, the PCEF will initiate The CCR message will report the execution result;
通过以上步骤，可完成用户在漫游场景下，对于第三方业务的使用流程；其中： Through the above steps, the user can use the third-party service in the roaming scenario;
对于DRA场景，即归属网络存在多个HPCRF需要通过DRA进行PCRF选择的场景，AAC的AF请求发送给H-DRA，H-DRA根据UE ID/IP和PDN标识，选择正确的HPCRF(例如IP-CAN会话关联的PCRF)；对于拜访地DRA场景，若第三方AAC从VPCRF接入即需要进行VPCRF选择，同前描述，AAC发送请求到VDRA，VDRA根据UE ID/IP和PDN标识选择正确的VPCRF。这里的UE ID指运营商签约用户的标识，例如MSISDN或IMSI号码。For the scenario of the DRA, that is, the scenario where multiple HPCRFs need to perform PCRF selection through the DRA, the AAC AF request is sent to the H-DRA, and the H-DRA selects the correct HPCRF according to the UE ID/IP and PDN identifiers (for example, IP- PCRF) associated with the CAN session; for the visited DRA scenario, if the third-party AAC accesses from the VPCRF, the VPCRF selection is required. As described above, the AAC sends a request to the VDRA. The VDRA selects the correct VPCRF according to the UE ID/IP and PDN identifiers. . The UE ID here refers to the identity of the operator's subscriber, such as the MSISDN or IMSI number.
对于漫游场景，若拜访网络和归属网络均签约了该业务，则第三方AAC可根据两者的优先级选择(例如优先选择归属网络HPCRF)接入；本实施例不限定AAC判断签约与否的实现，举例AAC可根据用户IP地址判断，拜访地接入场景IP地址由拜访网络分配，归属地接入场景IP地址由归属网络分配，由此可区分漫游的场景。对于只有归属地和拜访地网络签约场景，第三方AAC选择签约网络的PCRF接入；若为拜访地网络VPCRF接入，VPCRF通过S9接口和HPCRF交互，传送AF的业务信息给HPCRF用于策略决策，HPCRF通过S9接口将决策生产的相关规则和用量阈值以及各类事件订阅返回给VPCRF给GW安装执行。对于拜访地和归属地均未签约场景，可根据第三方网络和归属网络/拜访网络的漫游协议，基于S9接口或是DRA路由的Gx口方式，传送业务信息给PCRF决策。For the roaming scenario, if the visited network and the home network both subscribe to the service, the third-party AAC can select according to the priority selection of the two (for example, preferentially selecting the home network HPCRF); this embodiment does not limit the AAC to determine whether the subscription is signed or not. For example, the AAC can determine that the IP address of the visited access scene is allocated by the visited network, and the IP address of the home access scene is allocated by the home network, so that the roaming scenario can be distinguished. The third-party AAC selects the PCRF access of the subscription network. If the VPCRF accesses the visited network, the VPCRF interacts with the HPCRF through the S9 interface to transmit the AF service information to the HPCRF for policy decision. The HPCRF returns the relevant rules and usage thresholds for decision production and various event subscriptions to the VPCRF to the GW for installation and execution through the S9 interface. For the scenario where the visitor and the home are not signed, the service information can be transmitted to the PCRF for decision based on the S9 interface or the Gx interface of the DRA route according to the roaming protocol of the third-party network and the home network/visit network.
实施例二Embodiment 2
图7-1、7-2和7-3分别为漫游拜访地接入LBO和归属地接入HR场景下，第三方数据应用(AF)根据签约(agreement/collaboration)优先接入有签约关系的AAC接入架构图。其中：图7-1为LBO场景下，AF仅签约于拜访地网络，AF接入拜访地AAC的架构图；图7-2为LBO场景下，AF签约于归属地网络或同时签约拜访和归属网络，AF接入归属地AAC的架构图(根据不同优先级，AF也可接入拜访地AAC；这里以接入归属地AAC为举例说明)；图7-3为HR场景下，AF签约于归属地网络或同时签约拜访和归属网络，AF接入归属地AAC的架构图。AF与归属地和拜访地均无签约，而签约与第三方网络，AF接入第三方网络AAC的架构图参见图7-1和7-2。Figure 7-1, 7-2, and 7-3 are for the roaming visited access LBO and the home access HR scenario respectively. The third-party data application (AF) preferentially accesses the contracted relationship according to the agreement/collaboration. AAC access architecture diagram. Figure 7-1 shows the architecture of the AF in the LBO scenario, where the AF is only signed in the visited network, and the AF accesses the visited AAC. Figure 7-2 shows the AF contract in the home network or the simultaneous subscription and attribution. Network, AF access to the home AAC architecture diagram (according to different priorities, AF can also access the visited AAC; here is the access attribution AAC as an example); Figure 7-3 is the HR scenario, AF contracted The home network or the simultaneous subscription and home network, the AF accesses the architecture diagram of the home AAC. The AF has no contract with the attribution and the visited place, and the architecture of the contract with the third-party network and AF access to the third-party network AAC is shown in Figures 7-1 and 7-2.
本架构中该AAC归属的网络和第三方数据应用提供商之间存在签约(collaboration)关系，即AF可直接路由寻址到AAC，AAC可对AF接入移动网络进行路由。进一步可选地AAC可对AF接入移动网络进行签约检查和资源接纳控制，例如AAC可对该网络与AF的签约信息进行检查，AAC可通过内部存储或签约数据库中获取的签约信息如AF list,ASP ID，AF的用量阈值和业务费率等签约信息进行检查；对AF签约的整体QoS进行资源接纳控制，例如当AF当前的总用户数或总带宽或总用量超出签约值，AAC可根据用户优先级进行资源适配或业务拒绝等接纳控制。 In this architecture, there is a collaboration relationship between the AAC-owned network and the third-party data application provider, that is, the AF can be directly routed to the AAC, and the AAC can route the AF access mobile network. Further optionally, the AAC may perform subscription checking and resource admission control on the AF access mobile network. For example, the AAC may check the subscription information of the network and the AF, and the AAC may obtain the subscription information obtained through the internal storage or the subscription database, such as the AF list. , ASP ID, AF usage threshold and service rate and other subscription information are checked; resource admission control is performed on the overall QoS of the AF contract, for example, when the current total number of users or the total bandwidth or total usage of the AF exceeds the subscription value, the AAC may be based on User priority is used for admission control such as resource adaptation or service rejection.
图8为本实施例第三方数据应用提供商根据签约关系(例如协作关系)优先接入AAC架构的实施例流程图，如图8所示，AF根据协作关系优先级接入其签约优先级最高网络的AAC，通过AAC发起AF会话，触发IP-CAN会话修改的流程具体包括以下步骤：FIG. 8 is a flowchart of an embodiment of a third-party data application provider preferentially accessing an AAC architecture according to a contracting relationship (for example, a collaboration relationship). As shown in FIG. 8 , the AF has the highest subscription priority according to the collaboration priority. The AAC of the network initiates an AF session through the AAC, and the process of triggering the IP-CAN session modification includes the following steps:
步骤S801，在UE请求建立IP-CAN会话的过程中，PCEF位于的网关接收到IP-CAN会话建立请求消息，其中，在该IP-CAN会话建立请求消息中携带有用户标识和请求接入的PDN网络的PDN标识。Step S801, in the process of the UE requesting to establish an IP-CAN session, the gateway where the PCEF is located receives the IP-CAN session establishment request message, where the IP-CAN session establishment request message carries the user identifier and requests for access. PDN ID of the PDN network.
步骤S802，PCEF向PCRF发送IP-CAN会话建立指示消息，其中，该IP-CAN会话建立指示消息中携带用户标识、PDN标识以及为UE分配的IP地址。In step S802, the PCEF sends an IP-CAN session establishment indication message to the PCRF, where the IP-CAN session establishment indication message carries the user identifier, the PDN identifier, and the IP address allocated for the UE.
步骤S803，PCRF根据用户标识判断出还没有该用户的签约信息后，向SPR发送签约文档请求，并在该签约文档请求中携带用户标识和PDN标识。Step S803: After determining, according to the user identifier, the PCRF does not have the subscription information of the user, and sends a subscription document request to the SPR, and carries the user identifier and the PDN identifier in the subscription document request.
步骤S804，SPR根据用户标识和PDN标识返回对应的用户签约信息。Step S804, the SPR returns the corresponding user subscription information according to the user identifier and the PDN identifier.
步骤S805，PCRF根据返回的用户签约信息、网络策略、UE的接入信息等制定策略决策。其中，可以包括制定PCC规则和事件触发器。Step S805, the PCRF makes a policy decision according to the returned user subscription information, the network policy, and the access information of the UE. Among them, it may include formulating PCC rules and event triggers.
步骤S806，PCRF向PCEF发送IP-CAN会话建立确认消息，其中，该IP-CAN会话建立确认消息中携带PCC规则，事件触发器。Step S806, the PCRF sends an IP-CAN session establishment confirmation message to the PCEF, where the IP-CAN session establishment confirmation message carries a PCC rule and an event trigger.
步骤S807，PCEF安装策略，PCEF位于的网关向UE返回IP-CAN会话建立应答，其中，该IP-CAN会话建立应答中携带有IP地址。Step S807, the PCEF installs the policy, and the gateway where the PCEF is located returns an IP-CAN session establishment response to the UE, where the IP-CAN session establishment response carries an IP address.
步骤S808，如果是在线计费，PCEF发送CCR消息给OCS，激活在线计费会话，提供相应的输入信息给OCS进行决策，PCEF携带charging key，或Charging key & service ID给OCS请求信用信息。Step S808, if it is online charging, the PCEF sends a CCR message to the OCS, activates the online charging session, provides corresponding input information to the OCS for decision, and the PCEF carries the charging key, or the Charging key & service ID, to the OCS to request the credit information.
步骤S809，OCS根据请求消息和签约信息决策是否向PCEF提供信用授权信息，在CCA消息中返回给PCEF。Step S809, the OCS decides whether to provide the credit authorization information to the PCEF according to the request message and the subscription information, and returns the information to the PCEF in the CCA message.
步骤S810，UE与第三方数据应用提供商的AS/AF连接并请求业务，该AS/AF向AAC发送AF会话请求，触发建立与PCRF的AF会话。请求消息中携带UE ID、UE IP、业务数据流描述等业务信息。Step S810, the UE connects to the AS/AF of the third-party data application provider and requests the service, and the AS/AF sends an AF session request to the AAC, triggering the establishment of the AF session with the PCRF. The request message carries service information such as a UE ID, a UE IP, and a service data flow description.
第三方应用提供商AF根据签约关系优先级原则，根据签约关系及签约优先级向其签约的运营商网络的AAC发起请求(例如归属网络和拜访地网络同时签约，归属 网络优先于拜访网络，或拜访网络优先于归属网络)。这里3rd Party AF和AAC之间的通信协议不做限定；举例可以为SOAP或restful协议等。该AAC所在的运营商网络，不限定为该UE的归属地网络或拜访地网络，可以为两者之外的第三方运营商网络；对于AAC归属网络即为归属地或拜访地网络的场景，可直接接入归属地或拜访地网络PCRF。The third-party application provider AF initiates a request to the AAC of the contracted carrier network according to the contract relationship and the contract priority according to the contract relationship priority (for example, the home network and the visited network simultaneously sign, attribution The network takes precedence over visiting the network, or the visited network takes precedence over the home network). Here, the communication protocol between the 3rd Party AF and the AAC is not limited; for example, it may be a SOAP or a restful protocol. The operator network in which the AAC is located is not limited to the home network or the visited network of the UE, and may be a third-party carrier network other than the two; for the AAC home network, that is, the home or visited network, It can directly access the home or visited network PCRF.
步骤S811，第三方网络AAC向HPCRF发送AF会话建立请求，消息中携带S810中携带的内容；In step S811, the third-party network AAC sends an AF session establishment request to the HPCRF, where the message carries the content carried in S810.
可选地归属网络AAC可以作为第三方网络AAC和HPCRF的proxy路由接入，具体取决于运营需求和网络部署；Optionally, the home network AAC can be used as a proxy route access of the third-party network AAC and the HPCRF, depending on operational requirements and network deployment;
步骤S812，HPCRF根据AAC提供的业务信息、业务提供商信息、计费信息等AF会话信息，SPR提供的签约信息，以及PCEF提供的IP-CAN会话信息，进行策略决策，决策是否对该业务授权QoS和生成PCC规则，生成相应规则以及相应订阅事件。若AF/AAC有用量阈值提供或是签约了该业务的用量监控则还需要同时给PCEF下发用量监控关键字和阈值对该业务进行用量监控；Step S812, the HPCRF performs policy decision according to the AF session information such as service information, service provider information, and charging information provided by the AAC, the subscription information provided by the SPR, and the IP-CAN session information provided by the PCEF, and determines whether to authorize the service. QoS and generation of PCC rules, generating corresponding rules and corresponding subscription events. If the AF/AAC usage threshold is provided or the usage monitoring of the service is contracted, the PCEF also needs to send the usage monitoring keyword and the threshold to monitor the usage of the service;
若HPCRF拒绝授权，那么HPCRF向AAC返回拒绝消息，AF业务失败，流程结束；If the HPCRF rejects the authorization, the HPCRF returns a reject message to the AAC, the AF service fails, and the process ends.
步骤S813，HPCRF向PCEF提供PCC规则安装执行，给PCEF的RAR消息中携带步骤S812中生成的规则和事件订阅，以及可能的用量监控相关信息，具体如S812详细描述；In step S813, the HPCRF provides PCC rule installation and execution to the PCEF, and the RAR message sent to the PCEF carries the rule and event subscription generated in step S812, and the related usage monitoring related information, which is specifically described in S812.
步骤S814，PCEF安装并执行策略后，向H-PCRF返回确认消息；Step S814, after the PCEF installs and executes the policy, returns a confirmation message to the H-PCRF;
步骤S815，PCEF根据接收到的规则和事件信息，执行规则匹配以及承载修改或创建等IP-CAN会话的修改流程处理；若PCRF或AF订阅了规则执行结果或资源分配结果反馈，则PCEF将发起CCR消息将执行结果上报；Step S815, the PCEF performs rule matching and bearer modification or creation of an IP-CAN session modification process according to the received rule and event information; if the PCRF or AF subscribes to the rule execution result or the resource allocation result feedback, the PCEF will initiate The CCR message will report the execution result;
通过以上步骤，可完成用户在漫游场景下，对于第三方业务的使用流程；其中：Through the above steps, the user can use the third-party service in the roaming scenario;
对于DRA场景，即归属网络存在多个HPCRF需要通过DRA进行PCRF选择的场景，AAC的AF请求发送给H-DRA，H-DRA根据UE ID/IP和PDN标识，选择正确的HPCRF(例如IP-CAN会话关联的PCRF)；对于拜访地DRA场景，若第三方AAC从VPCRF接入即需要进行VPCRF选择，同前描述，AAC发送请求到VDRA，VDRA 根据UE ID/IP和PDN标识选择正确的VPCRF。这里的UE ID指运营商签约用户的标识，例如MSISDN或IMSI号码。For the scenario of the DRA, that is, the scenario where multiple HPCRFs need to perform PCRF selection through the DRA, the AAC AF request is sent to the H-DRA, and the H-DRA selects the correct HPCRF according to the UE ID/IP and PDN identifiers (for example, IP- PCRF) associated with the CAN session; for the visited DRA scenario, if the third-party AAC accesses from the VPCRF, the VPCRF selection is required. As described above, the AAC sends the request to the VDRA, VDRA. The correct VPCRF is selected according to the UE ID/IP and PDN identification. The UE ID here refers to the identity of the operator's subscriber, such as the MSISDN or IMSI number.
对于漫游场景，若拜访网络和归属网络均签约了该业务，则第三方AAC可根据默认优先级(例如优先选择归属网络)选择PCRF接入；本实施例不限定AAC判断签约与否的实现，举例AAC可根据用户IP地址判断，拜访地接入场景IP地址由拜访网络分配，归属地接入场景IP地址由归属网络分配，由此可区分漫游的场景。对于只有归属地和拜访地网络签约场景，第三方AAC选择签约网络的PCRF接入，若为拜访地网络VPCRF接入，VPCRF通过S9接口和HPCRF交互，传送AF的业务信息给HPCRF用于策略决策，HPCRF通过S9接口将决策生产的相关规则和用量阈值以及各类事件订阅返回给VPCRF给GW安装执行；或是VPCRF本地策略决策和进行规则生成和下发给GW安装执行。对于拜访地和归属地均未签约，仅签约第三方网络的场景，可根据第三方网络和归属网络/拜访网络的漫游协议，基于网间S9接口或是Gx口的网间DRA路由方式，传送业务信息给HPCRF/VPCRF决策。For the roaming scenario, if the visited network and the home network both subscribe to the service, the third-party AAC may select the PCRF access according to the default priority (for example, preferentially selecting the home network); this embodiment does not limit the implementation of the AAC to determine whether the subscription is successful or not. For example, the AAC can determine that the IP address of the visited access scene is allocated by the visited network, and the IP address of the home access scene is allocated by the home network, thereby distinguishing the roaming scenario. The third-party AAC selects the PCRF access of the subscription network. If the visited network is connected to the VPCRF, the VPCRF interacts with the HPCRF through the S9 interface to transmit the AF service information to the HPCRF for policy decision. The HPCRF returns the relevant rules and usage thresholds of the decision production and the various event subscriptions to the VPCRF to the GW installation and execution through the S9 interface; or the VPCRF local policy decision and the rule generation and delivery to the GW installation and execution. For the scenario where the visited place and the attribution are not signed, only the scenario of signing the third-party network can be transmitted according to the roaming agreement of the third-party network and the home network/visiting network, based on the inter-network S9 interface or the Gx-port inter-network DRA routing mode. Business information is given to the HPCRF/VPCRF decision.
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in a storage device by a computing device, or they may be fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
工业实用性Industrial applicability
如上所述，通过上述实施例及优选实施方式，解决相关技术的无法实现某种类型业务的计费和策略控制的问题，实现了业务的计费和策略控制。 As described above, the foregoing embodiments and preferred embodiments solve the problem that the related technologies cannot implement charging and policy control of a certain type of service, and implement charging and policy control of services.

Claims (10)

  1. 一种应用接入控制方法，包括：An application access control method includes:
    应用功能实体AF根据优先级原则，选择接入的应用接入控制网元AAC；Applying the function entity AF according to the priority principle, selecting an access application access control network element AAC;
    所述AF通过所述AAC向PCRF发送信息，其中，所述信息用于使策略和计费规则功能实体PCRF执行策略和计费决策。The AF sends information to the PCRF through the AAC, where the information is used to cause the policy and charging rule function entity PCRF to perform policy and charging decisions.
  2. 根据权利要求1所述的方法，其中，所述AF根据所述优先级原则选择接入AAC包括：The method of claim 1, wherein the selecting, by the AF, the accessing the AAC according to the priority principle comprises:
    所述AF根据位置优先级，优先接入就近网络的AAC；和/或，The AF preferentially accesses the AAC of the nearest network according to the location priority; and/or,
    所述AF根据签约优先级，优先接入签约优先级高的AAC。The AF preferentially accesses the AAC with a high subscription priority according to the subscription priority.
  3. 根据权利要求2所述的方法，其中，在用户设备的归属地网络和拜访地网络同时签约的情况下，所述签约优先级取决于漫游协议。The method of claim 2, wherein in the case where the home network of the user equipment and the visited network are simultaneously contracted, the subscription priority depends on the roaming agreement.
  4. 根据权利要求1至3中任一项所述的方法，其中，在部署路由代理DRA的情况下，所述AF通过所述AAC向所述PCRF发送所述业务信息的步骤包括：The method according to any one of claims 1 to 3, wherein, in the case of deploying a routing agent DRA, the step of the AF transmitting the service information to the PCRF through the AAC includes:
    所述AAC向所述DRA发送消息；The AAC sends a message to the DRA;
    所述DRA根据所述消息选择正确的PCRF；The DRA selects a correct PCRF according to the message;
    所述AF通过所述AAC向所述DRA选择的PCRF发送所述信息。The AF sends the information to the PCRF selected by the DRA through the AAC.
  5. 根据权利要求1至3中任一项所述的方法，其中，所述AF通过所述AAC向所述PCRF发送所述业务信息的步骤包括：The method according to any one of claims 1 to 3, wherein the step of the AF transmitting the service information to the PCRF through the AAC comprises:
    在所述归属地网络或者所述拜访地网络签约的情况下，所述AAC选择签约网络的PCRF接入；In the case that the home network or the visited network is contracted, the AAC selects a PCRF access of the subscription network;
    所述AF通过所述AAC向所述AAC接入的PCRF发送所述信息。The AF sends the information to the PCRF accessed by the AAC by using the AAC.
  6. 根据权利要求1至3中任一项所述的方法，其中，所述方法还包括：所述AAC对所述AF接入网络进行签约信息检查和/或资源接纳控制。The method according to any one of claims 1 to 3, wherein the method further comprises: the AAC performing subscription information check and/or resource admission control on the AF access network.
  7. 一种应用功能实体装置，包括：An application functional entity device comprising:
    选择模块，设置为根据优先级原则，选择接入的应用接入控制网元AAC； Selecting a module, and setting the access control network element AAC to be accessed according to the priority principle;
    发送模块，设置为通过所述AAC向PCRF发送信息，其中，所述信息用于使PCRF执行策略和计费决策。And a sending module, configured to send information to the PCRF through the AAC, where the information is used to enable the PCRF to perform policy and charging decisions.
  8. 根据权利要求7所述的应用功能实体装置，其中，The application function entity device according to claim 7, wherein
    所述选择模块设置为根据位置优先级，优先接入就近网络的AAC；和/或，设置为根据签约优先级，优先接入签约优先级高的AAC。The selection module is configured to preferentially access the AAC of the nearest network according to the location priority; and/or set to preferentially access the AAC with the highest subscription priority according to the subscription priority.
  9. 根据权利要求8所述的应用功能实体装置，其中，在用户设备的归属地网络和拜访地网络同时签约的情况下，所述签约优先级取决于漫游协议。The application function entity device according to claim 8, wherein in the case where the home network of the user equipment and the visited network are simultaneously contracted, the subscription priority depends on the roaming agreement.
  10. 根据权利要求7至9中任一项所述的应用功能实体装置，其中，在部署路由代理DRA的情况下，The application function entity device according to any one of claims 7 to 9, wherein, in the case of deploying a routing agent DRA,
    发送模块，设置为通过所述AAC向所述DRA选择的正确的PCRF发送信息，其中，所述信息用于使PCRF执行策略和计费决策，所述DRA是根据所述AAC发送的消息来选择所述正确的PCRF的。 a sending module, configured to send information to the correct PCRF selected by the AAC to the DRA, where the information is used to enable a PCRF to perform a policy and charging decision, where the DRA is selected according to a message sent by the AAC The correct PCRF.
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"3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Policy and charging control architecture (Release 12", 3GPP TS 23.203 V12.2.0, 30 September 2013 (2013-09-30) *

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US10972552B2 (en) 2016-09-30 2021-04-06 Huawei Technologies Co., Ltd. Method and system for user plane path selection
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