WO2010118673A1 - 策略和计费控制的处理方法、系统及设备 - Google Patents
策略和计费控制的处理方法、系统及设备 Download PDFInfo
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- WO2010118673A1 WO2010118673A1 PCT/CN2010/071710 CN2010071710W WO2010118673A1 WO 2010118673 A1 WO2010118673 A1 WO 2010118673A1 CN 2010071710 W CN2010071710 W CN 2010071710W WO 2010118673 A1 WO2010118673 A1 WO 2010118673A1
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- Prior art keywords
- policy
- message
- user equipment
- control
- charging
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Classifications
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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
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- 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 technologies, and in particular, to a method, system and device for processing policy and charging control.
- PCC policy and charging control
- the Policy Control and Charging Rules Function is connected to the Application Function (AF) through the R interface to obtain the service information of the current user equipment from the AF.
- the User Profile (Repository Profile Repository, SPR) is connected to obtain user subscription data from the SPR.
- the PCRF determines the corresponding policy according to the limitation of the user equipment network, the operator policy, the user subscription data, and the service information currently running by the user equipment, and provides the policy to the policy and charging execution in the gateway through the Gx interface. Policy and Charging Enforcement Function (PCEF), these policies are enforced by the PCEF.
- the policy includes the detection rule of the service data flow (the completion of a certain service, such as a voice IP flow set), whether it is gated, the quality of service (QoS) corresponding to the service data flow, and the flow-based charging rule.
- the Bearer Binding and Event Reporting Function performs the detection of the service data flow, ensures the QoS of the service data flow, and reports the event to the PCRF through the Gxx interface.
- the user equipment is registered to the AF (H-AF) of the home location;
- the H-AF delivers the service information according to the service request message sent by the user equipment.
- the H-PCRF stores the service information and replies with a confirmation message
- the H-PCRF confirms whether the existing PCC rules need to be modified or deleted, and selects a new PCC rule to load, that is, the PCRF confirms whether the existing PCC rules match the AF session, and can also make a policy according to the defined authorized QoS. Decision making, determining whether the business flow described in the PCC rules is allowed to pass, etc.;
- the H-PCRF stores the modified PCC rules, and issues the authorization QoS and event triggers to the V-PCRF;
- the V-PCRF identifies the relevant gateway control session. For the QoS authorization sent by the H-PCRF, the V-PCRF can also perform local authorization.
- V-PCRF may return a reject message to the H-PCRF, carrying an acceptable QoS;
- the H-PCRF sends a reject message to the H-AF, carrying an acceptable QoS
- the V-PCRF accepts the QoS authorization of the H-PCRF, the authorized QoS and event trigger are sent to the BBERF.
- BBERF installs or updates QoS rules and performs bearer processing
- the BBERF informs the H-PCRF through the V-PCRF: the result of executing the QoS rule;
- the H-PCRF sends policy and charging information to the PCEF through the V-PCRF.
- the network performs the PCC control process on the service of the user equipment, if the V-PCRF does not accept the H-PCRF.
- Authorization QoS AF authorization failure
- AF will repeatedly request authorization from H-PCRF, that is, repeatedly request PCC request control from the network, causing unnecessary Rx interface signaling interaction.
- Embodiments of the present invention provide a method, system, and device for processing policy and charging control, which reduce unnecessary signaling interaction of an Rx interface.
- Application layer functional entity subscribes policy and charging control to policy control and charging rule functional entities
- PCC capabilities change In the roaming scenario, after the policy control and charging rule function entity detects the change of the PCC capability, the policy control and charging rule function entity reports the capability change result to the application layer function entity.
- the media message is sent to the policy control and charging rule function entity according to the message, and the media message is used to trigger the network to the user.
- the service requested by the device performs policy and charging control, and the media message includes indication information corresponding to the policy and charging control capability information.
- a message receiving unit configured to receive a message sent by the policy control and charging rule function entity, where the message includes network policy and charging control capability information, where the policy and charging control capability information indicates whether the network can be used by the user equipment Business conducts policy and billing control;
- a media delivery unit configured to send a media message to the policy control and charging rule function entity according to the message, where the media message is used to trigger a network to perform policy and charging control on a service requested by the user equipment.
- the media message includes indication information corresponding to the policy and charging control capability information.
- the policy control and charging rule function entity PCRF provided by the embodiment of the present invention includes: a subscription receiving unit, configured to receive a subscription of an application layer functional entity to a policy and a charging control PCC capability change;
- the message sending unit in the roaming scenario, is configured to report the PCC capability change result to the application layer function entity after detecting the PCC capability change.
- the system for processing policy and charging control includes: a policy control and charging rule function entity and an application layer function entity;
- the policy control and charging rule function entity is configured to determine network policy and charging control capability information, where the policy and charging control capability information indicates whether the network can perform policy and charging control on the service of the user equipment;
- the message is sent to the application layer function entity, where the message includes: the policy and charging control capability information;
- the application layer function entity configured to receive, by the policy control and charging rule function entity, And sending, by the message, the media message, where the media message includes indication information corresponding to the policy and the charging control information, where the media message is used to trigger the network to perform policy and charging on the service requested by the user equipment. control.
- the PCRF sends the PCC control information to the AFC, and the AF sends a media message according to the reported PCC control capability, and indicates that the triggering network can perform the PCC on the service of the user equipment. control.
- the policy and charging control of the network for the user equipment service are triggered according to the PCC capability of the network, and the AFC repeats the PCC control request due to the difference between the capability of the AF request and the network PCC capability. Signaling interaction of the Rx interface.
- FIG. 1 is a schematic structural view of a PCC in the prior art
- FIG. 2 is a signaling flowchart of a method for processing PCC control of user equipment services in a roaming manner in the prior art
- FIG. 3 is a signaling flow chart of a method for processing a policy and a charging control according to an embodiment of the present invention
- FIG. 4 is a signaling flow chart of a method for processing a policy and a charging control according to Embodiment 1 of the present invention
- Embodiment 5 is a signaling flow diagram of a method for processing policy and charging control provided by Embodiment 2 of the method of the present invention.
- FIG. 6 is a schematic diagram of a network structure applicable to a method for processing policy and charging control provided by Embodiment 3 of the method of the present invention.
- FIG. 7 is a signaling flow diagram of a method for processing policy and charging control provided by Embodiment 3 of the method of the present invention.
- Embodiment 8 is a signaling flow diagram of a method for processing policy and charging control provided by Embodiment 4 of the method of the present invention.
- Embodiment 9 is a signaling flow diagram of a method for processing policy and charging control provided by Embodiment 5 of the method of the present invention.
- FIG. 11 is a schematic diagram of a network structure applicable to a method for processing policy and charging control provided by Embodiment 7 of the method of the present invention.
- FIG. 12 is a signaling flow diagram of a method for processing policy and charging control provided by Embodiment 7 of the method of the present invention.
- Embodiment 13 is a signaling flow diagram of a method for processing policy and charging control provided by Embodiment 8 of the method of the present invention.
- FIG. 14 is a schematic structural diagram of an application layer function entity provided by Embodiment 1 of the device of the present invention
- FIG. 15 is a schematic structural diagram of an application layer function entity provided by Embodiment 2 of the device of the present invention
- Schematic diagram of the control and charging rule function entity
- Figure 17 is a schematic structural diagram of a processing system for policy and charging control provided in Embodiment 7 of the system of the present invention.
- the technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.
- the method for processing the policy and the charging control provided by the embodiment of the present invention is implemented by the following steps.
- the signaling flowchart is as shown in FIG. 3, and includes:
- the PCRF determines the policy and the charging control capability information of the network, that is, the PCC control capability information, where the PCC control capability information is used to indicate whether the network can perform policy and charging control on the service of the user equipment;
- the PCRF sends a message to the AF, where the message is used to instruct the AF to process the application layer session, where the message includes the PCC control capability information;
- the AF receives the message, if the service requested by the user equipment needs to perform PCC control, the AF may send a media message, and the media message includes indication information corresponding to the PCC control capability information;
- the PCRF receives the media message, and triggers the corresponding network device to perform policy and charging control on the service of the user equipment according to the media message.
- the following is illustrated by a specific embodiment:
- the user equipment in the embodiment is moved from the HPLMN to the VPLMN, and the access network of the user equipment is a VPLMN.
- the signaling flowchart is as shown in FIG. 4, and includes:
- Step 101 The user equipment is registered to the AF.
- Step 102 The AF sends a subscription message to the PCRF through the R interface, where the subscription message is used to subscribe to the PCC control capability information of the VPLMN.
- the capability information of the VPLMN for performing PCC control on the service of the user equipment includes at least one of the following: whether the VPLMN can perform QoS authorization on the service of the user equipment, flow-based charging, dynamic resource allocation, that is, end-to-end QoS authorization, Operations such as QoS authorization based on user subscription information.
- the AF may subscribe to the authentication signaling request message (Dimeter AAR) of the Diameter protocol in the subscription signaling path state, and specifically, may add information indicating the PCC control capability of the service that subscribes to the VPLMN to the user equipment in the Diameter AAR, for example: Expand the definition value of the specific action attribute (Spec-Action AVP) of the R interface, add the indication value of the PCC capability change ( INDICATION OF PCC CAPABILITY CHANGE ) to the defined value of the special action AVP attribute, and add the indication value to the AAR. Subscribe to the PCC control capabilities of the VPLMN for the services of the user equipment.
- Different AVP Specific action attribute
- the indication value of the PCC capability change INDICATION OF PCC CAPABILITY CHANGE
- the AF can also subscribe to the PCC control capability information through messages in other protocol forms.
- Step 103 The PCRF receives the subscription message, and determines the PCC control capability information of the VPLMN.
- the PCC control capability information is used to indicate whether the VPLMN can perform PCC control on the service of the user equipment, and returns a report message to the AF according to the subscription message, and reports the message. Contains PCC control capability information;
- the PCC control capability of the user equipment network changes.
- the PCRF determines the ability of the VPLMN to perform PCC control on the service of the user equipment, it can perform detection according to the local configuration related to the roaming protocol, and determine according to the detected information. How to perform detection is the content of the prior art, and is no longer Narration.
- the PCRF may notify the AF by using an authentication authentication response message or a re-authorization message (Diameter AAA/RAR) of the Diameter protocol.
- Diameter AAA/RAR a re-authorization message
- the report message may include: Whether the VPLMN can perform the PCC control capability, the PCC control capability value, etc., in addition, the optional report message may further include information about the VPLMN of the user equipment on the visited network, such as the mobile country code of the VPLMN where the user equipment is located ( MCC), a mobile network code (MNC) that uniquely identifies the VPLMN, and so on.
- MCC mobile country code of the VPLMN where the user equipment is located
- MNC mobile network code
- the AAA/RAR message can be extended, and the PCC capability attribute (PCC-CAPABILITY AVP) is newly added, and the indication information is added in the newly added message header.
- PCC-ENABLE (0) The ability to add PCC in the newly added header (PCC-ENABLE (0)) is used to indicate that the VPLMN has PCC control capability for the user equipment service; add the authorization to disable the quality of service in the newly added message header ( QOS_AUTHORIZATION_DISABLE (1)), used to indicate that the VPLMN cannot perform end-to-end QoS authorization for the service of the user equipment (that is, cannot perform bearer processing for services or dynamically allocate resources), but can perform QoS authorization of the IP layer;
- QOS_SUBSCRIPTION_CONTROL_CHARGE_DISABLE(2) The service quality control (QOS_SUBSCRIPTION_CONTROL_CHARGE_DISABLE(2)) of the subscription and flow accounting is added to the message header to indicate that the VPLMN does not perform flow-based charging and user-based
- QoS control adding user-subscribed quality of service control (QOS_SUBSCRIPTION-CONTROL DISABLE (3)) in the newly added message header, which is used to indicate that the VPLMN does not perform user-based contract-based QoS control for the user equipment.
- QOS_SUBSCRIPTION-CONTROL DISABLE (3) user-subscribed quality of service control
- the report message may further include the message device network number attribute (3GPP-SGSN-MCC-MNC AVP) newly added to the AAA/RAR message when the user equipment visits the related information of the network, and is used to report related information of the VPLMN.
- 3GPP-SGSN-MCC-MNC AVP definition is defined with the Gx interface. The PCRF can obtain this value at the Gx port and pass it to the R interface.
- Step 104 The user equipment initiates a service request to the AF.
- Step 105 When the service requested by the user equipment needs to perform PCC control, the AF sends a media message to the PCRF according to the report message, and the media message includes indication information corresponding to the PCC control capability information.
- the indication information corresponding to the PCC control capability information is: If the PCC control capability is that the A operation cannot be performed, and the B operation is not restricted or the B operation is performed, the corresponding indication information indicates that the B operation can be performed. Information.
- the AF may include indication information in the media message sent by the Rx interface, where the indication information is used to indicate that the VPLMN performs flow-based charging or pre-authorization on the service of the user equipment, which can be understood by those skilled in the art.
- the indication information is generated by the AF according to the PCC control capability information in the report message.
- AF can form a description attribute on the media message of the Rx interface.
- OoS-Authorization-Indication and adding a traffic-based charging quality of service authorization (QOS_AUTH_CAHRGE_REQUIRED (0)) to the QoS-Authorization-Indication AVP, for indicating that the user equipment requests QoS authorization from the VPLMN and based on the flow charging; or adding The service quality authorization (ONLY_CHARGE_NO_QOS(1)) is used only to indicate that the user equipment requests flow-based charging to the VPLMN, but does not perform end-to-end QoS authorization only for the IP layer. QoS authorization, etc.
- the delivered media message may indicate that the service of the user equipment is pre-authorized, that is, the subscription information is checked.
- the message header of the service status information attribute (Service-Info-Status-AVP) in the Rx interface AAR message may be indicated.
- Step 106 The PCRF receives the media message, and according to the indication information contained therein, triggers PCC control on the service of the user equipment by the corresponding network device.
- the PCRF triggers the network side device that performs flow charging on the user equipment in the VPLMN to perform flow charging and the like.
- the AF performs step 107, according to The user equipment notifies the user equipment to initiate a resource request in the VPLMN identity, or obtains information about the VPLMN of the visited domain of the user equipment, and notifies all user equipments in the VPLMN to initiate a resource request in the visited domain.
- the AF can be directly notified when the notification is made, or can be notified by a device such as an Access Network Discovery and Selection Function (ANDSF).
- ANDSF Access Network Discovery and Selection Function
- the AF may be parsed from the received report message sent by the PCRF; or from the Session Initiation Protocol (SIP) of the Multimedia Subsystem (IMS).
- SIP Session Initiation Protocol
- IMS Multimedia Subsystem
- the information of the VPLMN where the user is located is obtained in the signaling network intrusion information (P-Access-Network-Info). It can be understood that if the obtained VPLMN information includes information indicating that the PCC control is not supported, according to the VPLMN information, all the user equipments located under the VPLMN are known, and the AF can uniformly process all the user settings under the VPLMN, such as notifying all The user device initiates a resource request.
- the PCRF sends the PCC control capability information of the access network to the AF, and the AF sends a media message according to the reported PCC control capability, where the media message is used to instruct the PCRF to perform PCC control on the service of the user equipment. Or the AF notifies the user equipment to initiate a resource request according to the reported PCC control capability.
- the PCC control capability is not deployed in the visited domain or a part of the PCC control capability is deployed, the policy and charging control of the network for the user equipment service is triggered according to the PCC capability of the actual access network, and no cause occurs.
- the difference between the capability of the AF request and the actual network capability causes the AF to repeatedly perform the PCC control request, reducing the signaling interaction of the R interface, and competing for the impact of the network on the session of the user equipment at the application layer.
- a method for processing a policy and a charging control is moved from the HPLMN to the VPLMN, and the access network of the user equipment is a VPLMN.
- the flowchart is as shown in FIG. 5, and the method includes the following steps: Step 201: User equipment Register to AF and initiate a business request;
- Step 202 The AF sends a media message of the service to the PCRF, and requests the VPLMN to perform PCC control.
- the limited PCC control capability refers to the inconsistent capability of the VPLMN to perform PCC control on the user equipment and the capability control requested in the service media message delivered by the AF.
- the PCRF can augment the AAA message, add the header PCC-CAPABILITY AVP, and add indication information to the newly added header, such as: add PCC-ENABLE (0); or add authorization that cannot be quality of service (QOS_AUTHORIZATION_DISABLE ( 1) ), used to refer to
- the VPLMN cannot perform end-to-end QoS authorization for the service requested by the user equipment, but can perform IP layer QoS authorization; or add service quality control that cannot perform flow accounting and user subscription.
- QOS_SUBSCRIPTION_CONTROL DISABLE (3) used to indicate that the VPLMN cannot perform user-based contract-based QoS control for the service requested by the user equipment.
- Step 204 After receiving the rejection information, the AF sends a media message according to the access network PCC control capability included in the rejection message.
- Step 205 The PCRF receives the media message and triggers PCC control.
- the AF After the AF receives the refusal message, the AF is parsed to obtain the PCC control capability, and the media message is sent.
- the method is as described in the first embodiment of the method, and details are not described herein.
- the PCRF determines that the access network has limited PCC control on the user equipment, and then returns a reject message to the AF and carries the PCC control capability, and the AF performs the PCC control capability according to the carried. Processing, that is, or notifying the user equipment to initiate a resource request, or delivering a media message, indicating that the control of the corresponding PCC capability is triggered.
- the AF performs processing on the application layer session according to the PCC capability information of the access network carried in the reject message returned by the PCRF, and the AF repetition does not occur due to the difference between the PCC capability of the AF request and the PCC capability of the access network.
- Performing a PCC control request reduces the signaling interaction of the R interface, thereby reducing the impact of the network on the session of the user equipment at the application layer.
- a method for processing policy and charging control is provided.
- the user equipment roams, it returns to the local access, the VPLMN does not deploy the PCC, and the HPLMN deploys the PCC.
- the user equipment roams when returning to the local access.
- the architecture diagram in the figure, the network device related to the embodiment of the present invention is taken as an example), wherein:
- the PCRF (h-PCRF) in the home network of the user equipment is connected to the PCRF (v-PCRF) of the roaming network of the user equipment through the S9 interface; the gateway serving the connection by the PDN Gateway (P-GW) , also reflects the function of PCEF; Serving Gateway, S-GW is responsible for relaying user traffic between the user equipment and the P-GW, and also reflects the functions of the PCEF.
- the PDN Gateway obtains the QoS and charging policy from the PCRF through the Gx interface; the P-GW and the S-GW are connected through the S8 interface, and are roaming interfaces that are home-accessed during roaming, S-GWs of the VPLMN and P-GWs of the HPLMN.
- a proxy network protocol (PMIP) based interface is provided between the user plane control between the VPLMN and the HPLMN gateway.
- PMIP proxy network protocol
- the processing of the PCC control is implemented by using the following steps.
- the signaling flowchart is as shown in FIG. 7, and includes:
- the access network of the user equipment is VPLMN:
- Step 301 The user equipment is registered to the h-AF.
- Step 302 When subscribing to the signaling path state, the h-AF subscribes to the PCC capability information to the h-PCRF by using the attribute of the Diameter AAR: the INDICATION_OF_PCC_CAPABILITY_CHANGE indication value in the Specific-Action AVP;
- Step 303 The h-PCRF determines that the VPLMN cannot perform end-to-end QoS authorization for the user equipment, but can perform IP layer QoS authorization, and the h-PCRF adds a message header PCC-CAPABILITY AVP in the AAA message, and adds QOS-AUTHORIZATION- DISABLE (1) is sent to h-AF; optionally, the report message AAA may include information of the VPLMN where the user equipment is located;
- Step 304 The user equipment initiates a service request (SDP Offer) to the h-AF.
- SDP Offer service request
- Step 305 When the service requested by the user equipment needs to perform IP layer QoS authorization or flow-based charging, the h-AF sends a media message Diameter AAR to the h-PCRF according to the reported AAA message, and the AF increases in the R interface AAR message.
- QoS-Authorization-Indication AVP and add the port ONLY_CHARGE_NO_QOS (1), indicating that the user equipment does not request and QoS authorization to the h-PCRF, only for flow-based charging; or,
- the h-AF adds a pre-authorization ( 1 ) ( PRELIMINARY SERVICE INFORMATION ( 1 ) ) to the service-Info-Status AVP in the R interface AAR message, and instructs the user equipment to pre-authorize the h-PCRF;
- Step 306 The h-PCRF returns a Diameter AAA message for confirmation.
- Step 307 When the service requested by the user equipment does not need to perform IP layer QoS authorization and flow-based charging, the h-AF directly informs the user equipment to initiate a resource request actively; or the h-AF obtains the VPLMN information from the message AAA in step 303, and knows The VPLMN cannot do dynamic resource allocation (ie, bearer) Processing), all the user equipments under the VPLMN can be uniformly processed.
- the h-AF directly informs the user equipment to initiate a resource request actively; or the h-AF obtains the VPLMN information from the message AAA in step 303, and knows The VPLMN cannot do dynamic resource allocation (ie, bearer) Processing), all the user equipments under the VPLMN can be uniformly processed.
- Step 308 The h-PCRF determines that the HPLMN performs PCC control on the service of the user equipment, that is, the QoS authorization capability is enabled, and the RAR message is sent. Add PCC_ENABLE ( 0 ) to the message header PCC_CAPABILITY AVP to indicate the ability to perform QoS authorization;
- Step 309 The h-AF returns a Diameter RAA message to the h-PCRF, and is used for the successful response step.
- Step 310 The user equipment initiates a service request message to the h-AF.
- Step 311 The h-AF sends a media message Diameter AAR, and the AF adds a QoS-Authorization-Indication AVP to the Media-Component-Description AVP of the R interface message AAR, and adds QOS-AUTH-CAHRGE to the newly added attribute.
- REQUIRED ( 0 ), indicating that the user equipment requires QoS authorization and flow-based charging to the HPLMN; or
- the QoS-Authorization-Indication AVP is not carried in the AAR, and the default value of the AVP is set to require the user equipment to request QoS authorization and flow-based charging to the HPLMN;
- Step 312 The h-PCRF returns a Diameter RAA message confirmation and triggers flow-based accounting.
- the PCRF sends the information that the access network cannot perform the end-to-end QoS authorization, that is, the dynamic resource allocation, to the AF, and the AF sends a media message according to the reported PCC control capability to indicate the access network.
- the traffic of the user equipment may be based on flow charging, and the flow charging based trigger may be performed; or the AF notifies the user equipment to initiate the resource request.
- the policy and the charging control of the user equipment service are triggered according to the PCC capability of the actual access network, and the AF repetition is not caused by the difference between the PCC capability of the AF request and the PCC capability of the access network.
- Performing a PCC control request reduces the interaction of the Rx interface, and P strives for the impact of the network on the session of the user equipment at the application layer.
- a method for processing the policy and the charging control, the roaming scenario in this embodiment is the same as the applicable scenario in the third embodiment of the method.
- the triggering of the PCC control is implemented by using the following steps. As shown, including:
- the access network of the user equipment is VPLMN:
- Step 401 The user equipment is registered to the h-AF.
- Step 402 The user equipment initiates an SDP Offer request to the h-AF.
- Step 403 The h-AF sends a media message Diameter AAR of the delivered service, requesting the VPLMN to perform PCC control;
- Step 404 The h-PCRF finds that the PCC control capability is limited, and the reject message is rejected.
- the message header PCC_CAPABILITY AVP is added in the reject message, and QOS_AUTHORIZATION_DISABLE (1) is added, indicating that dynamic resource allocation cannot be performed (ie, Do bearer processing), and can do IP layer QoS authorization;
- Step 405 When the user equipment requests the service to perform flow-based charging or IP layer QoS authorization, the h-AF may send the media message again, and add ONLY_CHARGE_NO in the message header QoS-Authorization-Indication AVP. – QOS (1), indicating that the user equipment does not require QoS authorization to the h-PCRF, and can be based on flow charging;
- Step 406 The h-PCRF receives the service information, and triggers the PCC control of the user equipment by the VPLMN.
- Step 407 The optional h-PCRF notifies the ANDSF to initiate a resource request for all user equipments in the VPLMN.
- Step 408 The ANDSF notifies all user equipments under the VPLMN to initiate a resource request.
- the access network is HPLMN, and the h-PCRF will The h-AF reports the PCC control capability of the HPLMN, and the subsequent steps of the PCC control are as described in the third step 308 of the method embodiment, and are not described here.
- the PCRF determines that the access network cannot allocate the dynamic resource to the service of the user equipment, and returns a reject message to the AF, and carries information that cannot allocate the dynamic resource.
- the AF notifies the user equipment to initiate a resource request, or delivers a media message, triggering the charging of the flow.
- the policy and charging control of the user equipment service of the access network are triggered according to the PCC capability of the actual access network, and the PCC capability of the AF request and the PCC capability of the access network do not occur.
- the AF repeats the PCC control request, which reduces the interaction of the Rx interface, and the P-lower access network affects the user equipment at the application layer.
- a method for processing policy and charging control which is applicable to returning to the local access when the user equipment roams, the PCLM is not deployed in the HPLMN, the PCC is deployed in the VPLMN, and the access network of the user equipment is deployed.
- the network architecture applicable in this embodiment is as shown in FIG. 6.
- the triggering of the PCC control is implemented by using the following steps.
- the signaling flowchart is as shown in FIG. 9, and includes:
- Step 501 The user equipment registers with the AF (v-AF) of the roaming place;
- Step 502 When subscribing to the signaling path state, the v-AF adds an indication value of INDICATION_OF_PCC_CAPABILITY_CHANGE by the Specific-Action AVP in the Diameter AAR, indicating that the PCRF (v-PCRF) of the roaming area is subscribed to the PCC. Control capability information;
- Step 503 The v-PCRF adds a message header PCC-CAPABILITY AVP to the AAA message, and adds QOS SUBSCRIPTION CONTROL CHARGE DISABLE (2) to the v-AF, indicating that the VPLMN cannot perform user-based QOS control on the user equipment and is based on Flow billing;
- Step 504 The user equipment initiates an SDP Offer request.
- Step 505 The v-AF sends a media message to indicate that the VPLMN does not need to consider the user subscription when performing QoS authorization on the service of the user equipment.
- Step 506 The v-PCRF sends a Diameter AAA message to confirm, and triggers the VPLMN to perform QoS authorization for the user equipment service regardless of the user subscription.
- the PCRF sends the information of the QoS authorization based on the flow accounting and the user subscription to the AF of the access network, and the AF sends a media message, indicating that the triggering network can perform the service of the user equipment.
- the policy and charging control of the user equipment service is triggered according to the PCC capability of the actual access network, and the AF repetition does not occur due to the difference between the PCC capability of the AF request and the PCC capability of the access network.
- Performing a PCC control request reduces the signaling interaction of the Rx interface, and P strives for the impact of the network on the user equipment at the application layer.
- the method for processing the policy and the charging control is the same as the applicable scenario of the fifth embodiment of the method in the embodiment.
- the triggering of the PCC control is implemented by using the following steps. 10, including:
- Step 601 The user equipment is registered to the v-AF.
- Step 602 The user equipment initiates an SDP Offer request.
- Step 603 The v-AF sends a service media message Diameter AAR, requesting the VPLMN to perform PCC control.
- Step 604 If the PCC capability is limited, the v-PCRF rejects the v-AF service request, adds a new message header PCC-CAPABILITY AVP, and adds QOS_SUBSCRIPTION CONTROL CHARGE DISABLE (2) to the v-AF. , indicating that the VPLMN cannot control the service of the user equipment based on the user subscription and the flow-based charging;
- Step 605 The v-AF instructs the VPLMN to perform QoS authorization on the service of the user equipment, and does not need to consider the user subscription;
- Step 606 The v-PCRF receives the service information, and triggers the VPLMN to perform the QoS authorization for the user equipment regardless of the user subscription.
- the PCRF determines that the access network VPLMN cannot perform traffic charging and user-signed QoS authorization for the service of the user equipment, and returns a reject message to the AF, and carries the flow-free.
- the information of the QoS authorization signed by the user and the user subscribes to the QoS authorization, and the AF sends a media message to trigger the QoS authorization that does not consider the user subscription.
- the PCC is triggered according to the PCC capability of the actual network, and the PCC control request is not repeated due to the difference between the PCC capability of the AF request and the PCC capability of the access network, thereby reducing the PCC control request.
- the interaction of the Rx interface, P strives for the impact of the low-network on the user equipment at the application layer.
- a method for processing the policy and the charging control is applicable to the roaming access of the user equipment when roaming, the PCLM is not deployed by the HPLMN, the PCC is deployed by the VPLMN, and the access network of the user equipment is the VPLMN, as shown in FIG.
- the architecture diagram of the returning to the local access when the user equipment roams (the network device related to the embodiment of the present invention is taken as an example), wherein:
- the PCRF (h-PCRF) in the home network of the user equipment is connected to the PCRF (v-PCRF) of the roaming network of the user equipment through the S9 interface; the gateway serving the connection by the PDN Gateway (P-GW) It also reflects the function of PCEF.
- the Serving Gateway (S-GW) is responsible for relaying user traffic between the user equipment and the P-GW, and also reflects the functions of the PCEF.
- the PDN Gateway obtains the QoS and charging policy from the PCRF through the Gx interface; the P-GW and the S-GW are connected through the S5 interface, and are used for relocation of the S-GW due to user equipment movement, and the S-GW of the VPLMN and Between the P-GWs of the HPLMN, a user plane tunnel between the VPLMN and the HPLMN gateway is provided, which is an interface based on a proxy network protocol (PMIP) or a channel protocol based on wireless packet service (GTP).
- PMIP proxy network protocol
- GTP wireless packet service
- the triggering of the PCC control is implemented by using the following steps.
- the signaling flowchart is as shown in FIG. 12, and includes:
- Step 701 The user equipment is registered to the v-AF.
- Step 702 When subscribing to the signaling path state, the v-AF adds the INDICATION_OF_PCC-CAPABILITY_CHANGE indication value through the Specific-Action AVP in the Diameter AAR, and subscribes the PCC control capability information to the v-PCRF.
- Step 703 The v-PCRF determines that the VPLMN cannot control based on the user subscription, adds a message header PCC-CAPABILITY AVP in the AAA message, and adds QOS_SUBSCRIPTION_CONTROL-DISABLE (3) to the v-AF;
- Step 704 The user equipment initiates an SDP Offer request.
- Step 705 The v-AF sends a media diagnosing a Diameter AAR message, and the QoS-Authorization-Indication AVP is carried in the R-interface Media-Component-Description AVP, indicating that the user equipment does not request QoS authorization to the v-PCRF, but only based on Flow billing;
- Step 706 The v-PCRF sends a Diameter AAA message to confirm, and triggers the VPLMN to perform flow-based charging on the service of the user equipment.
- the AF subscribes to the PCC control capability information to the PCRF, and the PCRF sends the information of the QoS control based on the user subscription to the service of the user equipment to the AF.
- the VPLMN is triggered to perform flow-based charging on the service of the user equipment, and triggering based on the flow charging.
- the policy and charging control of the network for the user equipment service are triggered according to the capabilities of the actual network, and the AFC is not repeatedly performed due to the difference between the PCC capability of the AF request and the PCC capability of the access network.
- the request reduces the interaction of the Rx interface, and the P network is less affected by the user equipment at the application layer.
- the applicable roaming scenario in the embodiment is the same as the applicable scenario in the seventh embodiment.
- the following steps are used to implement the triggering of the PCC control. 13, as shown, including:
- Step 801 The user equipment is registered to the v-AF.
- Step 802 The user equipment initiates an SDP Offer request.
- Step 803 The media message Diameter AAR sent by the v-AF is requested to perform PCC control.
- Step 804 If the PCC control capability is limited, the v-AF service request is denied, and the message header PCC-CAPABILITY AVP is added in the reject message, and QOS_SUBSCRIPTION_CONTROL_DISABLE (3) is returned to the v- AF, indicating that it is not possible to control based on user sign-up;
- Step 805 The v-AF sends a media message, and the QoS-Authorization-Indication AVP carries that the user equipment does not request QoS authorization from the v-PCRF, and only performs flow-based charging;
- Step 806 The v-PCRF receives the service information, and triggers the VPLMN to perform traffic-based charging on the service of the user equipment.
- the PCRF determines that the access network VPLMN cannot perform the user-signed QoS authorization for the service of the user equipment, and returns a reject message to the AF, and carries the user-based subscription.
- the information of the QoS authorization the AF sends a media message, indicating that the charging of the flow is triggered.
- the PCC is triggered according to the PCC capability of the actual access network, and the PCC control request is not repeated due to the difference between the PCC capability of the AF request and the PCC capability of the access network.
- the interaction of the Rx interface is reduced; P is contending for the influence of the network on the user equipment at the application layer.
- An application layer functional entity AF as shown in Figure 14 of the logical structure, includes:
- the message receiving unit 10 is configured to receive a message sent by the policy control and charging rule function entity, where the message includes network policy and charging control capability information, where the policy and charging control capability information indicates whether the network can be used for the user equipment. Information on business and policy control;
- the media delivery unit 11 is configured to: when the service of the user equipment needs to perform the policy and charging control, send a media message to the policy control and charging rule function entity according to the message, the media message.
- the triggering network performs policy and charging control on the service requested by the user equipment, where the media message includes indication information corresponding to the policy and charging control capability information.
- the media delivery unit 11 is delivered according to the PCC capability information contained in the message received by the message receiving unit 10.
- the AF in this embodiment further includes: a subscribing unit 12, configured to send a subscription message, where the subscription message is used to subscribe to network policy and charging control capability information;
- the message received by the message receiving unit 10 is the last message of the subscription message sent by the subscription unit 12.
- the media delivery unit 11 in the AF instructs the triggering network to perform PCC control on the service of the user equipment according to the PCC control capability in the message received by the message receiving unit 10.
- the policy and charging control of the network for the user equipment are triggered according to the PCC capability of the actual access network, and the AF is not caused by the difference between the PCC capability of the AF request and the PCC capability of the actual access network. Repeating the PCC control request reduces the interaction of the Rx interface, and P strives for the impact of the network on the session of the user equipment at the application layer.
- Equipment Embodiment 2
- An application layer function entity, the AF of the embodiment is compared with the device embodiment 1 and the notification unit 13 is added.
- the schematic diagram of the logical structure is shown in FIG. 15.
- the notification unit 13 is configured to be requested by the user equipment. The service does not need to perform policy and charging control, directly notifys, or informs the user equipment to initiate a resource request by accessing the network discovery and selection function entity.
- the AF may further include: a visited domain obtaining unit 14 and a second notifying unit 15 , wherein the visited domain obtaining unit 14 is configured to obtain a visit of the user equipment when the service requested by the user equipment does not need to perform policy and charging control Information about the domain, such as the mobile country code of the user equipment in the visited domain, and the unique identifier of the visited domain;
- the second notification unit 15 is configured to learn, according to the visited domain related information obtained by the visited domain obtaining unit 14, all the user equipments in the visited domain, and notify all the user equipments to initiate a resource request.
- the visited domain obtaining unit 14 can obtain the visited domain related information by parsing the message received by the message receiving unit 10, and the second notifying unit 15 notifies all the user equipments in the visited domain to initiate the resource request by visiting the information obtained by the domain obtaining unit 14. .
- the notification unit 13 of the AF may notify the user equipment to initiate the resource request, and the second notification unit 14 notifies all the user equipments in the visited domain where the user equipment is located. Initiating a resource request reduces the information interaction of the Rx interface.
- a policy control and charging rule function entity PCRF a schematic diagram of the logical structure is shown in Figure 16, including:
- the determining unit 20 is configured to determine policy and charging control capability information of the network, where the policy and charging control capability information indicates whether the network can perform policy and charging control on the service of the user equipment;
- the message sending unit 21 is configured to send a message to the application layer function entity according to the capability determined by the determining unit 20, and instruct the application layer function entity to perform processing of an application layer session, where the message is encapsulated Contains the policy and charging control information.
- the PCRF further includes a triggering unit 22, configured to: when receiving the media message sent by the application layer function entity according to the message sent by the message sending unit 21, trigger a corresponding network device pair according to the media message.
- the service of the user equipment performs policy and charging control, and the media message includes: indication information corresponding to the policy and charging control capability information.
- the policy control and charging rule function entity further includes: a subscription receiving unit 23, configured to receive a subscription message sent by the application layer function entity, where the subscription message is used to subscribe to network policy and charging control capability information, Then, the message sent by the message sending unit 21 is a report message for the subscription message.
- a subscription receiving unit 23 configured to receive a subscription message sent by the application layer function entity, where the subscription message is used to subscribe to network policy and charging control capability information, Then, the message sent by the message sending unit 21 is a report message for the subscription message.
- the message sending unit 21 in the PCRF sends the information about whether the network can perform PCC control on the service of the user equipment to the AF.
- the triggering unit 22 performs triggering of the PCC control according to the indication message.
- the policy and charging control of the network for the user equipment is triggered according to the PCC capability of the actual access network, and the AF is not caused by the difference between the PCC capability of the AF request and the PCC capability of the actual access network. Repeating the PCC control request reduces the interaction of the Rx interface, and P strives for the impact of the network on the session of the user equipment at the application layer.
- a processing system for policy and charging control includes: a policy control and charging rule function entity 100 and an application layer function entity 200;
- the policy control and charging rule function entity 100 is configured to determine policy and charging control capability information, where the policy and charging control capability information indicates whether the network can perform policy and charging control on the service of the user equipment;
- the message is sent to the application layer function entity 200, where the message includes: the policy and charging control capability information;
- the application layer function entity 200 is configured to receive the message sent by the policy control and charging rule function entity 100, and send a media message, where the media message includes an indication corresponding to the policy and charging control capability information.
- the information is used to trigger the network to perform policy and charging control on the service requested by the user equipment.
- the PCRF sends a message to the AF whether the network can perform the PCC control on the service of the user equipment, and the AF sends the media message according to the reported PCC control capability.
- the PCC capability of the AF request is obtained according to the network PCC capability returned by the PCRF, and the AFC repeating the PCC control request due to the difference between the PCC capability of the AF request and the actual network PCC capability does not occur.
- the signaling interaction of the Rx interface is reduced, and the P network is less affected by the session of the user equipment at the application layer.
- the program can be stored in a computer readable storage medium.
- the storage medium can include: ROM, RAM, disk or CD, etc.
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Abstract
一种策略和计费控制的处理方法、系统及设备,应用于通信技术领域。本发明 实施例中,PCRF将网络是否能对用户设备的业务进行 PCC控制的信息发送给 AF,AF根据上报的 PCC控制能力下发媒体消息,指示网络对用户设备的业务 进行的 PCC控制; 或 AF通知用户设备发起资源请求。 本发明实施例中网络对 用户设备业务的策略和计费控制是根据实际接入网络的 PCC能力进行触发的, 不会出现因 AF请求的 PCC能力和实际网络 PCC能力的差异而导致 AF重复 进行 PCC控制请求,减少了 Rx接口的交互,降低网络对用户设备在应用层进 行会话的影响。
Description
策略和计费控制的处理方法、 系统及设备 本申请要求于 2009 年 4 月 13 日提交中国专利局、 申请号为 200910134708. 5、 发明名称为 "策略和计费控制的处理方法、 系统及设备" 的 中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域, 特别涉及策略和计费控制的处理方法、 系统及 设备。
背景技术
目前的通信技术领域, 当用户设备在网络进行业务运行的过程中, 网络需 要对该用户设备进行策略和计费控制 (policy and charging control, PCC ), 第 三代合作伙伴计划( 3rd Generation Partnership Project, 3 GPP )定义了一种 PCC 架构, 如图 1所示, 其中:
策略控制和计费规则功能实体 ( Policy Control and Charging Rules Function, PCRF )通过 R 接口与应用层功能实体( Application Function, AF ) 相连, 从 AF获得当前用户设备正在运行的业务信息; 通过 Sp接口与用户签 约数据库( Subscription Profile Repository, SPR )相连, 从 SPR获取用户签约 数据。 PCRF根据用户设备网络的限制, 运营商策略, 用户签约数据以及用户 设备当前正在运行的业务信息等决定对应的策略, 并将该策略通过 Gx接口提 供给网关( Gateway )中的策略和计费执行实体( Policy and Charging Enforcement Function, PCEF ), 由 PCEF执行这些策略。 其中策略包括业务数据流(完成 某一业务, 比如语音的 IP流集合) 的检测规则, 是否门控, 业务数据流对应 的服务质量(Quality of Service, QoS )和基于流的计费规则等。
另外,在 PCC构架中,承载绑定和事件上报实体 ( Bearer Binding and Event Reporting Function, BBERF )执行业务数据流的检测,保证业务数据流的 QoS, 并通过 Gxx接口向 PCRF上报事件。
用户设备在不同网络间漫游时, 需要保持 IP业务的连续性, 以下以一个 具体的应用为例说明, 用户设备漫游时进行业务的运行, 对用户设备业务的 PCC 控制需要进行转移。 当用户设备从归属地的公众陆地移动电话网
( HPLMN )移动到拜访地的公众陆地移动电话网 (VPLMN ), 且在 HPLMN 和 VPLMN中都部署了 PCC时, 参照图 2, 具体是通过如下的步骤实现由漫游 地对用户设备的业务进行 PCC控制:
1、 用户设备注册到归属地的 AF ( H-AF );
2、 H-AF根据用户设备发送的业务请求消息下发业务信息;
3、 H-PCRF存贮业务信息, 回复确认消息;
4、 H-PCRF确认已有的 PCC规则是否需要修改或者删除, 并选择新的 PCC 规则进行装载, 即 PCRF确认已有的 PCC规则与 AF会话是否匹配, 还可以按照 定义的授权 QoS做出策略决策,决定 PCC规则里描述的业务流是否允许通过等;
5、 H-PCRF存储修改的 PCC规则, 下发授权 QoS、 事件触发器到 V-PCRF;
6、 V-PCRF识别出相关的网关控制会话, 对于 H-PCRF发来的 QoS授权 V-PCRF还可以进行本地授权;
7、如果 V-PCRF不接受 H-PCRF的 QoS授权, 可以向 H-PCRF返回拒绝消息, 携带可接受的 QoS;
8、 H-PCRF发送拒绝消息到 H-AF, 携带可接受的 QoS;
9、 AF向 H-PCRF重授权, 重复以上 3~6过程;
10、 如果 V-PCRF接受 H-PCRF的 QoS授权, 则向 BBERF下发授权 QoS、 事 件触发器;
11、 BBERF安装或者更新 QoS规则并进行承载处理;
12、 BBERF通过 V-PCRF告知 H-PCRF: 对 QoS规则执行的结果;
13、 H-PCRF通过 V-PCRF向 PCEF下发策略和计费信息。
在对上述现有技术进行实践和研究的过程中, 本发明的发明人发现: 现有技术中网络对用户设备的业务进行 PCC控制处理的流程中, 如果 V-PCRF不接受 H-PCRF下发的授权 QoS, AF授权失败, 则 AF会重复向 H-PCRF 请求授权, 即重复向网络请求 PCC请求控制, 引起不必要的 Rx接口信令交互。 发明内容
本发明实施例提供策略和计费控制的处理方法、 系统及设备, 减少了 Rx 接口不必要的信令交互。
本发明实施例提供的策略和计费控制的处理方法, 包括:
应用层功能实体向策略控制和计费规则功能实体订阅策略和计费控制
PCC能力变化;
漫游场景下, 在所述策略控制和计费规则功能实体检测到所述 PCC能力变 化后, 所述策略控制和计费规则功能实体将能力变化结果上报给应用层功能实 体。
本发明实施例提供的策略和计费控制的处理方法, 包括:
接收策略控制和计费规则功能实体发送的消息, 所述消息包含网络的策略 和计费控制能力信息, 所述策略和计费控制能力信息指示网络是否能对用户设 备的业务进行策略和计费控制;
当所述用户设备的业务需要进行所述策略和计费控制时,根据所述消息下 发媒体消息给所述策略控制和计费规则功能实体, 所述媒体消息用于触发网络 对所述用户设备所请求的业务进行策略和计费控制, 所述媒体消息中包含与所 述策略和计费控制能力信息对应的指示信息。
本发明实施例提供的应用层功能实体 AF, 包括:
消息接收单元, 用于接收策略控制和计费规则功能实体发送的消息, 所述 消息包含网络的策略和计费控制能力信息, 所述策略和计费控制能力信息指示 网络是否能对用户设备的业务进行策略和计费控制;
媒体下发单元, 用于根据所述消息下发媒体消息给所述策略控制和计费规 则功能实体, 所述媒体消息用于触发网络对所述用户设备所请求的业务进行策 略和计费控制, 所述媒体消息中包含与所述策略和计费控制能力信息对应的指 示信息。
本发明实施例提供的策略控制和计费规则功能实体 PCRF, 包括: 订阅接收单元, 用于接收应用层功能实体对策略和计费控制 PCC能力变化 的订阅;
消息发送单元, 漫游场景下, 用于在检测到所述 PCC能力变化后, 将所述 PCC能力变化结果上报给应用层功能实体。
本发明实施例提供的策略和计费控制的处理系统, 包括: 策略控制和计费 规则功能实体和应用层功能实体;
所述策略控制和计费规则功能实体, 用于确定网络的策略和计费控制能力 信息, 所述策略和计费控制能力信息指示网络是否能对用户设备的业务进行策 略和计费控制; 发送消息给应用层功能实体, 所述消息中包含: 所述策略和计 费控制能力信息;
所述应用层功能实体, 用于接收策略控制和计费规则功能实体发送的所述
消息, 下发媒体消息, 所述媒体消息中包含与所述策略和计费控制的信息对应 的指示信息, 所述媒体消息用于触发网络对所述用户设备所请求的业务进行策 略和计费控制。
本发明实施例中, PCRF将网络是否能对用户设备的业务进行 PCC控制的 信息发送给 AF, 则 AF根据上报的 PCC控制能力下发媒体消息, 指示触发网络 可以对用户设备的业务进行的 PCC控制。 本发明实施例中网络对用户设备业务 的策略和计费控制是根据网络的 PCC能力进行触发的,不会出现因 AF请求的能 力和网络 PCC能力的差异而导致 AF重复进行 PCC控制请求,减少了 Rx接口的信 令交互。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付 出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1是现有技术中 PCC结构示意图;
图 2是现有技术中漫游地对用户设备业务进行 PCC控制的处理方法的信令 流程图;
图 3是本发明实施例提供的策略和计费控制的处理方法的信令流程图; 图 4是本发明方法实施例一提供的策略和计费控制的处理方法的信令流程 图;
图 5是本发明方法实施例二提供的策略和计费控制的处理方法的信令流程 图;
图 6是本发明方法实施例三提供的策略和计费控制的处理方法所适用的网 络结构示意图;
图 7是本发明方法实施例三提供的策略和计费控制的处理方法的信令流程 图;
图 8是本发明方法实施例四提供的策略和计费控制的处理方法的信令流程 图;
图 9是本发明方法实施例五提供的策略和计费控制的处理方法的信令流程 图;
图 10是本发明方法实施例六提供的策略和计费控制的处理方法的信令流
程图;
图 11是本发明方法实施例七提供的策略和计费控制的处理方法所适用的 网络结构示意图;
图 12是本发明方法实施例七提供的策略和计费控制的处理方法的信令流 程图;
图 13是本发明方法实施例八提供的策略和计费控制的处理方法的信令流 程图;
图 14是本发明设备实施例一提供的应用层功能实体的结构示意图; 图 15是本发明设备实施例二提供的应用层功能实体的结构示意图; 图 16是本发明设备实施例三提供的策略控制和计费规则功能实体的结构 示意图;
图 17本发明系统实施例七提供的策略和计费控制的处理系统的结构示意 图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。 本发明实施例提供的策略和计费控制的处理方法是通过如下步骤来实现, 信令流程图如图 3所示, 包括:
1、 PCRF确定网络的策略和计费控制能力信息即 PCC控制能力信息, 所 述 PCC控制能力信息用于指示网络是否能对用户设备的业务进行策略和计费 控制;
2、 PCRF发送消息给 AF, 所述消息用于指示 AF进行应用层会话的处理, 所述消息中包含所述 PCC控制能力信息;
3、 AF接收到所述消息, 如果用户设备请求的业务需要进行 PCC控制, AF则可以下发媒体消息, 在媒体消息中包含与所述 PCC控制能力信息对应的 指示信息;
4、 PCRF接收到所述媒体消息,根据所述媒体消息触发相应的网络设备对 所述用户设备的业务进行策略和计费控制。
以下通过具体的实施例来说明:
方法实施例一
一种策略和计费控制的处理方法, 本实施例中的用户设备是从 HPLMN移 动到 VPLMN, 则用户设备的接入网络是 VPLMN, 信令流程图如图 4所示, 包括:
步骤 101、 用户设备注册到 AF;
步骤 102、 AF通过 R 接口向 PCRF发送订阅消息, 订阅消息用于订阅 VPLMN的 PCC控制能力信息;
可以理解, VPLMN对用户设备的业务进行 PCC控制的能力信息至少包括 以下一种: VPLMN对用户设备的业务是否能进行 QoS的授权、 基于流计费、 动态的资源分配即端到端的 QoS授权、基于用户签约信息的 QoS授权等操作。
这里 AF可以在订阅信令路径状态通过 Diameter协议的鉴权认证请求消息 ( Diameter AAR )进行订阅, 具体地可以在 Diameter AAR 中添加指示订阅 VPLMN对用户设备的业务进行 PCC控制能力信息, 比如: 可以扩充 R 接口 特殊动作属性( Specific-Action AVP ) 的定义值, 在特殊动作 AVP属性的定义 值 中 增 加 PCC 能 力 变 化 的 指 示 值 ( INDICATION OF PCC CAPABILITY CHANGE ), 并将该指示值添加到 AAR中, 进行 VPLMN对用户设备的业务的 PCC控制能力的订阅。
可以理解, AF还可以通过其它协议形式的消息进行 PCC控制能力信息的 订阅。
步骤 103、 PCRF接收订阅消息, 确定 VPLMN的 PCC控制能力信息, 该 PCC 控制能力信息用于指示 VPLMN对用户设备的业务是否能进行 PCC控制, 根据 所述订阅消息向 AF返回上报消息, 在上报消息中包含 PCC控制能力信息;
当用户设备改变漫游状态(如: 从漫游地回到归属地, 或者从归属地到漫 游地)或者改变漫游接入方式(如从漫游回归属地接入改变为在漫游地本地接 入),可以导致用户设备网络的 PCC控制能力发生变化。则 PCRF在确定 VPLMN 对用户设备的业务进行 PCC控制的能力时, 可以根据漫游协议相关的本地配置 进行检测, 并根据检测的信息进行确定, 如何进行检测是现有技术的内容, 在 此不再赘述。
PCRF在发送对所述上报消息时,可以通过 Diameter协议的鉴权认证响应消 息或重授权消息 (Diameter AAA/RAR )告知 AF。 在上报消息中可以包括:
VPLMN是否能进行 PCC控制能力、 PCC控制能力值等, 除此之外, 可选的在上 报消息中还可以包括用户设备在拜访网络即 VPLMN的相关信息, 如用户设备 所在 VPLMN的移动国家代码 ( MCC )、 唯一标识 VPLMN的移动网络代码 ( MNC )等。
具体地, 可以扩充 AAA/RAR消息, 新增加消息头 PCC能力属性 ( PCC— CAPABILITY AVP ), 在新增加的消息头中添加指示信息。 比如: 在新 增加的消息头内添加 PCC的能力 (PCC— ENABLE ( 0 ) ), 用来指示 VPLMN对 用户设备的业务具备 PCC控制能力; 在新增加的消息头中添加禁用服务质量的 授权( QOS_AUTHORIZATION_DISABLE ( 1 ) ), 用来指示 VPLMN不能对用 户设备的业务做端到端 QoS授权(即无法为业务进行承载处理, 或动态分配资 源),但可以做 IP层的 QoS授权; 在新增加的消息头中添加签约和流的计费的服 务质量控制 (QOS— SUBSCRIPTION— CONTROL— CHARGE— DISABLE ( 2 ) ), 用来指示 VPLMN对用户设备的业务不可以进行基于流的计费和基于用户签约 的 QoS控制; 在新增加的消息头中添加用户签约的服务质量控制 ( QOS— SUBSCRIPTION— CONTROL DISABLE ( 3 ) ), 用于指示 VPLMN对用 户设备不可以进行基于用户签约的 QoS控制等。
上报消息中还可以包括用户设备在拜访网络的相关信息时, 可以在 AAA/RAR消息里新增加消息头网络号码属性( 3GPP-SGSN-MCC-MNC AVP ), 用于上报 VPLMN的相关信息。 3GPP-SGSN-MCC-MNC AVP定义同 Gx接口定 义, PCRF可以在 Gx口得到此值, 从而传递到 R接口。
步骤 104、 用户设备向 AF发起业务请求;
步骤 105、 当用户设备请求的业务需要进行 PCC控制, AF根据上报消息下 发媒体消息给 PCRF, 在媒体消息中包含与所述 PCC控制能力信息对应的指示 信息;
可以理解, 这里与 PCC控制能力信息对应的指示信息为: 如果 PCC控制能 力为不能进行 A操作, 而没有对 B操作进行限制或指明能进行 B操作时, 对应的 指示信息为指示能进行 B操作的信息。
在一个实施例中, AF可以在 Rx接口下发的媒体消息中包含指示信息, 所 述指示信息用于指示 VPLMN对用户设备的业务进行基于流的计费或者预授 权, 本领域技术人员可以理解的是, 所述指示信息由 AF根据上报消息中的 PCC 控制能力信息生成。 AF可以在 Rx接口的媒体消息构成描述属性
( Media-Component-Description AVP ) 里 增 加 QoS授权指 示属 性
( QoS-Authorization-Indication AVP ), ^口下表中所示:
Media-Component-Description: := < AVP Header: 517 >
*[ Media- Sub-Component ]; Set of flows for one flow identifier [ AF -Application-Identifier ]
[ Media-Type ]
[ Max-Requested-Bandwidth-UL ]
[ Max-Requested-Bandwidth-DL ]
「 OoS-Authorization-Indication ] 并在 QoS-Authorization-Indication AVP添加基于流计费的服务质量授权 ( QOS_AUTH_CAHRGE_REQUIRED ( 0 ) ), 用于来指示用户设备向 VPLMN 请求 QoS授权以及基于流计费; 或添加只基于流计费部进行服务质量的授权 ( ONLY— CHARGE— NO— QOS ( 1 ) ), 用于来指示用户设备向 VPLMN请求基于 流计费, 但是不进行端到端 QoS授权仅作 IP层 QoS授权等。
另外, 如果上 ^艮消息中指示 VPLMN中的 PCRF对用户设备的业务不能进行 QoS的授权, 则在下发的媒体消息中可以指示对用户设备的业务进行预授权, 即对签约信息进行检查等操作,具体地,可以在 Rx接口 AAR消息里的服务状态 信息属性( Service-Info-Status- AVP ) 的消息头进行指示。
步骤 106、 PCRF接收到媒体消息, 根据其中包含的指示信息, 触发对相应 的网络设备对用户设备的业务进行 PCC控制。
可以理解, 当媒体消息中指示只进行基于流计费, 则 PCRF触发 VPLMN内 对用户设备进行流计费的网络侧设备执行流计费等。
在另一个具体的实施例中, 在步骤 104中用户设备向 AF发起业务请求后, 当用户设备所请求的业务不需要进行 PCC控制, 如不能进行动态资源分配等, 则 AF执行步骤 107,根据用户设备在 VPLMN的标识通知用户设备主动发起资源 请求; 或者获得用户设备所在拜访域即 VPLMN的有关信息, 通知 VPLMN下的 所有用户设备在拜访域发起资源请求。 可以理解, 在进行通知时, AF可以直接 通知,也可以通过接入网络发现和选择功能实体( Access Network Discovery and Selection Function, ANDSF )等设备通知。
具体地, AF在执行步骤 107中获得的用户设备所在拜访域的有关信息时, 可以从接收到的 PCRF发送的上报消息中解析获得; 或从多媒体子系统(IMS ) 的会话发起协议 ( SIP )信令网 矣入信息( P-Access-Network-Info ) 中获取用 户所在 VPLMN的信息等。 可以理解, 如果获得的 VPLMN信息中包含指示不支 持 PCC控制的信息, 根据 VPLMN信息, 得知位于 VPLMN下的所有用户设备, 则 AF可以针对该 VPLMN下所有的用户设^故统一处理如通知所有的用户设备 发起资源请求。
可见, 本实施例中, PCRF将接入网络的 PCC控制能力信息发送给 AF, AF 根据上报的 PCC控制能力下发媒体消息, 所述媒体消息用于指示 PCRF对用户 设备的业务进行的 PCC控制,或 AF根据上报的 PCC控制能力通知用户设备发起 资源请求。 本发明实施例中如果拜访域中没有部署 PCC控制能力或部署一部分 的 PCC控制能力, 网络对用户设备业务的策略和计费控制是根据实际接入网络 的 PCC能力进行触发的,不会出现因 AF请求的能力和实际网络能力的差异而导 致 AF重复进行 PCC控制请求, 减少了 R接口的信令交互, P争低网络对用户设 备在应用层进行会话的影响。 方法实施例二
一种策略和计费控制的处理方法, 本实施例中的用户设备是从 HPLMN移 动到 VPLMN, 则用户设备的接入网络是 VPLMN, 流程图如图 5所示, 包括: 步骤 201、 用户设备注册到 AF, 并发起业务请求;
步骤 202、 AF发送业务的媒体消息给 PCRF, 请求 VPLMN进行 PCC控制; 步骤 203、 PCRF接收到业务的媒体消息后, 确定 VPLMN的 PCC控制能力, 所述 PCC控制能力指示 VPLMN是否能对用户设备请求的业务进行 PCC控制,如 果发现 VPLMN对用户设备的 PCC控制能力受限, 则返回拒绝消息, 并携带受 限的 PCC控制能力信息给 AF; 可以理解, 在 VPLMN对用户设备的 PCC控制没 有受限时, 触发相关设备进行相应 PCC的控制;
这里 PCC控制能力受限是指 VPLMN对用户设备进行 PCC控制与 AF下发的 业务媒体消息中请求的能力控制不一致等。
可以理解, PCRF可以扩充 AAA消息,增加消息头 PCC— CAPABILITY AVP, 并在新增加的消息头中添加指示信息, 如: 添加 PCC— ENABLE ( 0 ); 或添加 不能进行服务质量的授权 ( QOS_AUTHORIZATION_DISABLE ( 1 ) ), 用来指
示 VPLMN不能对用户设备请求的业务进行端到端 QoS授权, 但可以做 IP层 QoS 授权; 或添加不能进行流计 费和用 户 签约 的服务质量控制
( QOS— SUBSCRIPTION— CONTROL— CHARGE— DISABLE ( 2 ) ) , 用于指示 VPLMN不能对用户设备请求的业务进行基于流的计费和基于用户签约的 QoS 控 制 , 或 添 加 不 能 进 行 用 户 签 约 的 服 务 质 量 控 制
( QOS_SUBSCRIPTION_CONTROL DISABLE ( 3 ) ), 用于指示 VPLMN不能 对用户设备请求的业务进行基于用户签约的 QoS控制。
步骤 204、 AF在收到该拒绝信息之后,根据所述拒绝消息中包含的接入网 络 PCC控制能力下发媒体消息;
步骤 205、 PCRF接收到媒体消息, 触发 PCC控制。
上述步骤 204中 AF接受到拒绝消息之后, 解析得到 PCC控制能力, 并下 发媒体消息, 方法如方法实施例一所述, 在此不再赘述。
本实施例中, 当 AF下发了业务媒体消息, PCRF确定接入网络对用户设 备的 PCC控制受限, 则向 AF返回拒绝消息, 并携带 PCC控制能力, AF则根 据携带的 PCC控制能力进行处理, 即或通知用户设备发起资源请求, 或下发 媒体消息, 指示触发相应的 PCC能力的控制。 本实施例中 AF根据 PCRF返回 的拒绝消息中携带的接入网络的 PCC 能力信息进行对应用层会话的处理, 不 会出现因 AF请求的 PCC能力和接入网络 PCC能力的差异而导致 AF重复进 行 PCC控制请求, 减少了 R 接口的信令交互, 从而降低网络对用户设备在应 用层进行会话的影响。
以下以在实际中应用例进行说明:
方法实施例三
本实施例中提供了一种策略和计费控制的处理方法, 用户设备漫游时回归 属地接入, VPLMN未部署 PCC, HPLMN部署了 PCC, 参照图 6所示为用户设备 漫游时回归属地接入的架构图(图中以与本发明实施例有关的网络设备为例), 其中:
用户设备归属网络中的 PCRF ( h-PCRF )通过 S9接口与用户设备拜访网络 即漫游地的 PCRF ( v-PCRF )相连; 分组数据网网关(PDN Gateway, P-GW ) 为连接提供服务的网关, 也体现 PCEF的功能; 服务网关 (Serving Gateway,
S-GW ) 负责在用户设备和 P-GW之间中继用户业务流, 也体现 PCEF的功能。 其中 PDN Gateway通过 Gx接口从 PCRF获得 QoS和计费策略; P-GW与 S-GW通 过 S8接口相连, 为漫游时归属地接入的漫游接口, 位于 VPLMN的 S-GW和 HPLMN的 P-GW之间, 提供 VPLMN和 HPLMN网关之间用户面的相关控制, 是 基于代理网络协议 ( PMIP ) 的接口。 则本实施例中具体通过如下的步骤实现 PCC控制的处理, 信令流程图如 图 7所示, 包括:
当用户设备在漫游地时, 用户设备的接入网络为 VPLMN:
步骤 301、 用户设备注册到 h-AF;
步骤 302、 h-AF在订阅信令路径状态时, 通过 Diameter AAR 的属性: Specific-Action AVP中 INDICATION— OF— PCC— CAPABILITY— CHANGE指示 值向 h-PCRF订阅 PCC能力信息;
步骤 303、 h-PCRF确定 VPLMN不能对用户设备进行端到端的 QoS授权, 但可以做 IP 层 QoS 授权, h-PCRF 则在 AAA 消息里新增加消息头 PCC— CAPABILITY AVP, 并添加 QOS— AUTHORIZATION— DISABLE ( 1 )后 发送给 h-AF; 可选的在上报消息 AAA中可以包含用户设备所在的 VPLMN的 信息;
步骤 304、 用户设备向 h-AF发起业务请求( SDP Offer );
步骤 305、 当用户设备请求的业务需要进行 IP层 QoS授权或基于流计费, 则 h-AF根据上报的 AAA消息, 下发媒体消息 Diameter AAR给 h-PCRF, AF 在 R 接口 AAR 消息中增力口 QoS-Authorization-Indication AVP , 并添力口 ONLY— CHARGE— NO— QOS ( 1 ),指示用户设备不向 h-PCRF请求与 QoS授权, 只做基于流计费; 或,
h-AF在 R 接口 AAR消息中的 Service-Info- Status AVP中添加预授权( 1 ) ( PRELIMINARY SERVICE INFORMATION ( 1 ) ), 指示用户设备向 h-PCRF 预授权;
步骤 306、 h-PCRF返回 Diameter AAA消息进行确认;
步骤 307、 当用户设备请求的业务不需要进行 IP层 QoS授权和基于流计 费, h-AF直接通知用户设备主动发起资源请求; 或者 h-AF从步骤 303上报消 息 AAA中获得 VPLMN信息, 知道该 VPLMN不能做动态资源分配(即承载
处理), 可以针对该 VPLMN下所有的用户设备做统一处理。
当用户设备结束漫游, 回到归属地, 用户设备的接入网络为 HPLMN: 步骤 308、 h-PCRF确定 HPLMN对用户设备的业务进行 PCC控制能力, 即能进行 QoS授权能力,则发送 RAR消息,在消息头 PCC— CAPABILITY AVP 中添加 PCC_ENABLE ( 0 ), 指示能进行 QoS授权能力;
步骤 309、 h-AF给 h-PCRF返回 Diameter RAA消息, 用于成功应答步骤
308中的 Diameter RAR;
步骤 310、 用户设备向 h-AF发起业务请求消息;
步骤 311、 h-AF下发媒体消息 Diameter AAR, AF在 R 接口消息 AAR的 Media-Component-Description AVP中新增 QoS-Authorization-Indication AVP,并 在新增的属性中添加 QOS—AUTH— CAHRGE— REQUIRED ( 0 ), 指示用户设备 向 HPLMN要求 QoS授权以及基于流的计费; 或者,
在 AAR中不携带 QoS-Authorization-Indication AVP, 设定该 AVP的默认 值为用户设备向 HPLMN要求 QoS授权以及基于流的计费;
步骤 312、 h-PCRF返回 Diameter RAA消息确认, 并触发进行基于流的计 费。
本实施例中, PCRF将接入网络不能对用户设备的业务进行端到断的 QoS 授权即动态资源的分配的信息发送给 AF, AF根据上报的 PCC控制能力下发 媒体消息, 指示接入网络可以对用户设备的业务进行基于流计费, 进行基于流 计费的触发; 或 AF通知用户设备发起资源请求。 本发明实施例中网络对用户 设备业务的策略和计费控制是根据实际接入网络的 PCC 能力进行触发的, 不 会出现因 AF请求的 PCC能力和接入网 PCC能力的差异而导致 AF重复进行 PCC控制请求, 减少了 Rx接口的交互, P争低网络对用户设备在应用层进行会 话的影响。 方法实施例四
一种策略和计费控制的处理方法, 本实施例中的漫游场景和方法实施例三 的适用场景相同, 本实施例中具体通过如下的步骤实现 PCC控制的触发, 信 令流程图如图 8所示, 包括:
当用户设备在漫游地时, 用户设备的接入网络为 VPLMN:
步骤 401、 用户设备注册到 h-AF;
步骤 402、 用户设备向 h-AF发起 SDP Offer请求;
步骤 403、 h-AF发送下发业务的媒体消息 Diameter AAR, 请求 VPLMN 进行 PCC控制;
步骤 404、 h-PCRF发现 PCC控制能力受限, 回复拒绝消息, 在拒绝消息 中 新 增 消 息 头 PCC— CAPABILITY AVP , 并 添 加 QOS— AUTHORIZATION— DISABLE ( 1 ), 指示无法做动态资源分配 (即无法 做承载处理), 而可以做 IP层 QoS授权;
步骤 405、 当用户设备请请求的业务需要进行基于流计费, 或 IP层 QoS 授权, h-AF可以再次下发媒体消息,在消息头 QoS-Authorization-Indication AVP 中,添加 ONLY— CHARGE— NO— QOS ( 1 ),指示用户设备不向 h-PCRF要求 QoS 授权, 可作基于流计费;
步骤 406、 h-PCRF接受业务信息, 并触发 VPLMN对用户设备的 PCC控 制;
步骤 407、可选的 h-PCRF通知 ANDSF对该 VPLMN下的所有用户设备主 动发起资源请求;
步骤 408、 ANDSF通知该 VPLMN下的所有用户设备发起资源请求。
如果在用户设备注册到 h-AF以后, h-AF已向 h-PCRF订阅 PCC能力信息, 则当用户设备结束漫游, 回到归属地接入时, 接入网络为 HPLMN, h-PCRF 会向 h-AF上报 HPLMN的 PCC控制能力, 以后 PCC控制的触发如方法实施 例三步骤 308之后的步骤, 在此不在赘述。
本实施例中, 当 AF下发了业务的媒体消息, PCRF确定接入网络不能对 用户设备的业务进行动态资源的分配, 则向 AF返回拒绝消息, 并携带不能进 行动态资源的分配的信息, AF 则通知用户设备发起资源请求, 或下发媒体消 息, 触发进行流的计费。 本发明实施例中接入网对用户设备业务的策略和计费 控制是根据实际接入网的 PCC能力进行触发的, 不会出现因 AF请求的 PCC 能力和接入网 PCC能力的差异而导致 AF重复进行 PCC控制请求, 减少了 Rx 接口的交互, P争低接入网对用户设备在应用层进行 ^舌的影响。 方法实施例五
一种策略和计费控制的处理方法, 本实施例中适用在用户设备漫游时回归 属地接入, HPLMN未部署 PCC, VPLMN部署了 PCC, 用户设备的接入网络
为 VPLMN, 本实施例中适用的网络架构如图 6所示, 本实施例中具体通过如 下的步骤实现 PCC控制的触发, 信令流程图如图 9所示, 包括:
步骤 501、 用户设备注册到漫游地的 AF ( v-AF );
步骤 502、 v-AF 在订阅信令路径状态时, 通过 Diameter AAR 中的 Specific-Action AVP添加 INDICATION— OF— PCC— CAPABILITY— CHANGE的 指示值, 指示向漫游地的 PCRF ( v-PCRF )订阅 PCC控制能力信息;
步骤 503、 v-PCRF在 AAA消息中新增消息头 PCC— CAPABILITY AVP, 并添加 QOS SUBSCRIPTION CONTROL CHARGE DISABLE ( 2 ) 发送给 v-AF, 指示 VPLMN无法对用户设备进行基于用户签约的 QOS控制以及基于 流计费;
步骤 504、 用户设备发起 SDP Offer请求;
步骤 505、 v-AF下发媒体消息, 指示 VPLMN对用户设备的业务进行 QoS 授权时, 不需考虑用户签约;
步骤 506、 v-PCRF发送 Diameter AAA消息确认, 并触发 VPLMN对用户 设备的业务进行不考虑用户签约的 QoS授权 。
本实施例中, PCRF将接入网络不能对用户设备的业务进行基于流计费和 用户签约的 QoS授权的信息发送给 AF, AF下发媒体消息, 指示触发网络可 以对用户设备的业务进行不考虑用户签约的 QoS授权。本发明实施例中网络对 用户设备业务的策略和计费控制是根据实际接入网络的 PCC能力进行触发的, 不会出现因 AF请求的 PCC能力和接入网 PCC能力的差异而导致 AF重复进 行 PCC控制请求, 减少了 Rx接口的信令交互, P争低网络对用户设备在应用层 进行会话的影响。 方法实施例六
一种策略和计费控制的处理方法, 本实施例中适用的漫游场景和方法实施 例五的适用场景相同, 本实施例中具体通过如下的步骤实现 PCC控制的触发, 信令流程图如图 10所示, 包括:
步骤 601、 用户设备注册到 v-AF;
步骤 602、 用户设备发起 SDP Offer请求;
步骤 603、 v-AF下发业务媒体消息 Diameter AAR,请求 VPLMN进行 PCC 控制;
步骤 604、 v-PCRF如果发现 PCC能力受限, 拒绝 v-AF的业务请求, 在拒 绝消 息中增加新消 息头 PCC— CAPABILITY AVP, 并添加 QOS— SUBSCRIPTION CONTROL CHARGE DISABLE ( 2 )返回给 v-AF, 指示 VPLMN无法基于用户签约对用户设备的业务进行控制以及基于流计费;
步骤 605、 v-AF指示 VPLMN对用户设备的业务进行 QoS授权时, 不需 考虑用户签约;
步骤 606、 v-PCRF接收业务信息,并触发 VPLMN对用户设备的业务进行 不考虑用户签约的 QoS授权。
本实施例中, 当 AF下发了业务媒体消息, PCRF确定接入网络 VPLMN 不能对用户设备的业务进行基于流计费和用户签约的 QoS授权,向 AF返回拒 绝消息, 并携带不能进行基于流计费和用户签约的 QoS授权的信息, AF则下 发媒体消息,指示触发不考虑用户签约的 QoS授权。本实施例中是根据实际网 络的 PCC能力对用户设备请求的业务进行 PCC的触发, 不会出现因 AF请求 的 PCC能力和接入网 PCC能力的差异而导致 AF重复进行 PCC控制请求, 减 少了 Rx接口的交互, P争低网络对用户设备在应用层进行 ^舌的影响。 方法实施例七
一种策略和计费控制的处理方法, 本实施例中适用在用户设备漫游时回漫 游地接入, HPLMN未部署 PCC, VPLMN部署了 PCC, 用户设备的接入网络是 VPLMN, 参照图 11所示为用户设备漫游时回归属地接入的架构图 (图中以与 本发明实施例有关的网络设备为例) , 其中:
用户设备归属网络中的 PCRF ( h-PCRF )通过 S9接口与用户设备拜访网络 即漫游地的 PCRF ( v-PCRF )相连; 分组数据网网关(PDN Gateway, P-GW ) 为连接提供服务的网关, 也体现 PCEF的功能; 服务网关 (Serving Gateway, S-GW ) 负责在用户设备和 P-GW之间中继用户业务流, 也体现 PCEF的功能。 其中 PDN Gateway通过 Gx接口从 PCRF获得 QoS和计费策略; P-GW与 S-GW通 过 S5接口相连, 用于由于用户设备移动而引起的 S-GW的重定位, 位于 VPLMN 的 S-GW和 HPLMN的 P-GW之间,提供 VPLMN和 HPLMN网关之间用户面隧道, 是基于代理网络协议( PMIP )或基于无线分组业务的通道协议 ( GTP )的接口。
本实施例中具体通过如下的步骤实现 PCC控制的触发, 信令流程图如图 12所示, 包括:
步骤 701、 用户设备注册到 v-AF;
步骤 702、 v-AF 在订阅信令路径状态时, 通过 Diameter AAR 中的 Specific-Action AVP添加 INDICATION— OF— PCC— CAPABILITY— CHANGE指 示值, 向 v-PCRF订阅 PCC控制能力信息;
步骤 703、 v-PCRF确定 VPLMN无法基于用户签约做控制, 在 AAA消息 里 新 增 消 息 头 PCC— CAPABILITY AVP , 并 添 加 QOS— SUBSCRIPTION— CONTROL— DISABLE ( 3 )发送给 v-AF;
步骤 704、 用户设备发起 SDP Offer请求;
步骤 705 、 v-AF 下发媒体消 Diameter AAR 息, 在 R 接口 Media-Component-Description AVP 中 携 带 QoS 授 权 指 示 QoS-Authorization-Indication AVP, 指明用户设备不向 v-PCRF要求 QoS授权, 只做基于流计费;
步骤 706、 v-PCRF发送 Diameter AAA消息确认, 并触发 VPLMN对用户 设备的业务进行基于流计费。
本实施例中, AF向 PCRF订阅 PCC控制能力信息, 则 PCRF会将接入网 络 VPLMN不能对用户设备的业务进行基于用户签约的 QoS控制的信息,发送 给 AF,则 AF下发媒体消息,指示触发 VPLMN对用户设备的业务进行基于流 的计费, 进行基于流计费的触发。 本发明实施例中网络对用户设备业务的策略 和计费控制是根据实际网络的能力进行触发的,不会出现因 AF请求的 PCC能 力和接入网 PCC能力的差异而导致 AF重复进行 PCC控制请求, 减少了 Rx 接口的交互, P争低网络对用户设备在应用层进行 ^舌的影响。 方法实施例八
一种策略和计费控制的处理方法, 本实施例中适用的漫游场景和方法实施 例七的适用场景相同, 本实施例中具体通过如下的步骤实现 PCC控制的触发, 信令流程图如图 13所示, 包括:
步骤 801、 用户设备注册到 v-AF;
步骤 802、 用户设备发起 SDP Offer请求;
步骤 803、 v-AF下发业务的媒体消息 Diameter AAR,请求进行 PCC控制;
步骤 804、 v-PCRF如果发现 PCC控制能力受限, 拒绝 v-AF业务请求, 在 拒 绝 消 息 里 新 增 消 息 头 PCC— CAPABILITY AVP , 并 添 加 QOS— SUBSCRIPTION— CONTROL— DISABLE ( 3 )返回给 v-AF, 指明无法基 于用户签约做控制;
步骤 805、 v-AF下发媒体消息, 在 QoS-Authorization-Indication AVP中携 带指示用户设备不向 v-PCRF要求 QoS授权, 只做基于流计费;
步骤 806、 v-PCRF接受业务信息,并触发 VPLMN对用户设备的业务进行 基于流计费。
本实施例中, 当 AF下发了业务的媒体消息, PCRF确定接入网络 VPLMN 不能对用户设备的业务进行基于用户签约的 QoS授权,则向 AF返回拒绝消息, 并携带不能进行基于用户签约的 QoS授权的信息, AF则下发媒体消息, 指示 触发进行流的计费。 本实施例中是根据实际接入网络的 PCC 能力对用户设备 请求的业务进行 PCC的触发, 不会出现因 AF请求的 PCC能力和接入网 PCC 能力的差异而导致 AF重复进行 PCC控制请求, 减少了 Rx接口的交互; P争低 网络对用户设备在应用层进行 ^舌的影响。 设备实施例一
一种应用层功能实体 AF, 逻辑结构示意图如图 14所示, 包括:
消息接收单元 10, 用于接收策略控制和计费规则功能实体发送的消息, 所 述消息包含网络的策略和计费控制能力信息, 所述策略和计费控制能力信息指 示网络是否能对用户设备的业务进行策略和计费控制的信息;
媒体下发单元 11, 用于当所述用户设备的业务需要进行所述策略和计费控 制时, 根据所述消息下发媒体消息给所述策略控制和计费规则功能实体, 所述 媒体消息用于触发网络对所述用户设备所请求的业务进行策略和计费控制, 所 述媒体消息中包含与所述策略和计费控制能力信息对应的指示信息。
可以理解, 媒体下发单元 11是根据消息接收单元 10接收的消息中包含的 PCC能力信息进行下发的。
可选地, 本实施例中的 AF还包括: 订阅单元 12, 用于发送订阅消息, 所述 订阅消息用于订阅网络的策略和计费控制的能力信息;
所述消息接收单元 10接收的消息是对所述订阅单元 12发送的订阅消息的 上 4艮消息。
本实施例中, AF中的媒体下发单元 11根据消息接收单元 10接收的消息中的 PCC控制能力, 指示触发网络可以对用户设备的业务进行的 PCC控制。 本发明 实施例中网络对用户设备业务的策略和计费控制是根据实际接入网络的 PCC 能力进行触发的,不会出现因 AF请求的 PCC能力和实际接入网络 PCC能力的差 异而导致 AF重复进行 PCC控制请求, 减少了 Rx接口的交互, P争低网络对用户 设备在应用层进行会话的影响。 设备实施例二
一种应用层功能实体,本实施例的 AF和设备实施例一相比,增加了通知单 元 13, 逻辑结构示意图如图 15所示, 所述通知单元 13, 用于当所述用户设备所 请求的业务不需要进行策略和计费的控制时, 直接通知, 或通过接入网络发现 和选择功能实体通知所述用户设备发起资源请求。
可选地, AF还可以包括: 拜访域获得单元 14和第二通知单元 15, 其中拜访 域获得单元 14, 用于当用户设备请求的业务不需要进行策略和计费控制, 获得 用户设备所在拜访域的有关信息, 如用户设备在拜访域的移动国家码, 和拜访 域的唯一标志码等;
第二通知单元 15, 用于根据所述拜访域获得单元 14获得的拜访域有关信息 得知该拜访域下所有的用户设备, 并通知所述所有的用户设备发起资源请求。
拜访域获得单元 14可以通过解析消息接收单元 10接收的消息来获得拜访 域相关信息, 而第二通知单元 15通过拜访域获得单元 14得到的这些信息, 通知 拜访域中的所有用户设备发起资源请求。
本实施例中当用户设备请求的业务不需要进行策略和计费控制时, AF的通 知单元 13可以通知用户设备发起资源请求, 由第二通知单元 14通知该用户设备 所在拜访域下所有用户设备发起资源请求, 减少了 Rx口的信息交互。 设备实施例三
一种策略控制和计费规则功能实体 PCRF, 逻辑结构示意图如图 16所示, 包括:
确定单元 20, 用于确定网络的策略和计费控制能力信息, 所述策略和计费 控制能力信息指示网络是否能对用户设备的业务进行策略和计费控制;
消息发送单元 21, 用于根据所述确定单元 20确定的能力, 发送消息给应用 层功能实体, 指示所述应用层功能实体进行应用层会话的处理, 所述消息中包
含所述策略和计费控制信息。
可选地, PCRF还包括触发单元 22, 用于当接收到所述应用层功能实体根 据所述消息发送单元 21发送的消息下发的媒体消息,根据所述媒体消息触发相 应的网络设备对所述用户设备的业务进行策略和计费控制, 所述媒体消息中包 含: 与所述策略和计费控制能力信息对应的指示信息。
可选地, 策略控制和计费规则功能实体, 还包括: 订阅接收单元 23, 用于 接收应用层功能实体发送的订阅消息, 所述订阅消息用于订阅网络的策略和计 费控制能力信息, 则所述消息发送单元 21发送的消息为对所述订阅消息的上报 消息。
本实施例中, PCRF中消息发送单元 21将网络是否能对用户设备的业务进 行 PCC控制的信息发送给 AF, 当接收到 AF返回的指示消息, 触发单元 22根据 指示消息进行 PCC控制的触发。 本发明实施例中网络对用户设备业务的策略和 计费控制是根据实际接入网络的 PCC能力进行触发的, 不会出现因 AF请求的 PCC能力和实际接入网络 PCC能力的差异而导致 AF重复进行 PCC控制请求, 减 少了 Rx接口的交互, P争低网络对用户设备在应用层进行会话的影响。 系统实施例
一种策略和计费控制的处理系统, 逻辑结构示意图如图 17所示, 包括: 策 略控制和计费规则功能实体 100和应用层功能实体 200;
所述策略控制和计费规则功能实体 100, 用于确定的策略和计费控制能力 信息, 所述策略和计费控制能力信息指示网络是否能对用户设备的业务进行策 略和计费控制; 发送消息给应用层功能实体 200, 所述消息中包含: 所述策略 和计费控制能力信息;
所述应用层功能实体 200, 用于接收策略控制和计费规则功能实体 100发送 的所述消息, 下发媒体消息, 所述媒体消息中包含与所述策略和计费控制能力 信息对应的指示信息, 所述媒体消息用于触发网络对所述用户设备所请求的业 务进行策略和计费控制。
本实施例中, PCRF将网络是否能对用户设备的业务进行 PCC控制的信息 发送给 AF, 则 AF会根据上报的 PCC控制能力下发媒体消息。 本发明实施例中 AF请求的 PCC能力是根据 PCRF返回的网络 PCC能力得到的, 不会出现因 AF请 求的 PCC能力和实际网络 PCC能力的差异而导致 AF重复进行 PCC控制请求, 减
少了 Rx接口的信令交互, P争低网络对用户设备在应用层进行会话的影响。 本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成, 该程序可以存储于一计算机可读 存储介质中, 存储介质可以包括: ROM、 RAM, 磁盘或光盘等。
以上对本发明实施例所提供的策略和计费控制的处理方法、 系统和设备进
述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对于本领域的一般技术人员, 依据本发明的思想, 在具体实施方式及应用范围 上均会有改变之处, 本说明书内容不应理解为对本发明的限制。
Claims
1、 一种策略和计费控制的处理方法, 其特征在于, 包括:
应用层功能实体向策略控制和计费规则功能实体订阅策略和计费控制 PCC能力变化;
漫游场景下, 在所述策略控制和计费规则功能实体检测到所述 PCC能力变 化后, 所述策略控制和计费规则功能实体将能力变化结果上报给应用层功能实 体。
2、 如权利要求 1所述的方法, 其特征在于, 所述 PCC能力变化包括: 在用 户设备漫游场景下, VPLMN未部署 PCC, HPLMN部署了 PCC。
3、 如权利要求 1所述的方法, 其特征在于, 所述策略和计费控制能力信息 用于指示网络是否能对用户设备的业务进行策略和计费控制;
4、 如权利要求 1所述的方法, 其特征在于, 所述策略控制和计费规则功能 实体将能力变化结果上 给应用层功能实体包括:
发送消息给应用层功能实体, 所述消息用于指示所述应用层功能实体进行 应用层会话的处理, 所述消息中包含所述策略和计费控制能力。
5、 如权利要求 4所述的方法, 其特征在于, 所述发送消息给应用层功能实 体之前还包括:
接收应用层功能实体发送的业务媒体消息, 则发送消息给所述应用层功能 实体为: 发送对所述业务的媒体消息的拒绝消息给所述应用层功能实体。
6、 如权利要求 4所述的方法, 其特征在于, 所述发送消息给应用层功能实 体之后还包括:
接收所述应用层功能实体根据所述消息下发的媒体消息, 所述媒体消息中 包含: 与所述策略和计费控制能力信息对应的指示信息;
根据所述媒体消息触发相应的网络设备对所述用户设备的业务进行策略 和计费控制。
7、 如权利要求 1至 6任一项所述的方法, 其特征在于, 所述策略和计费控 制能力至少包括以下一种: 是否能进行动态的资源分配, 是否能进行基于流计 费, 是否能进行基于网络层的服务质量授权, 是否能进行基于用户签约信息的 服务质量授权。
8、 一种策略和计费控制的处理方法, 其特征在于, 包括:
接收策略控制和计费规则功能实体发送的消息, 所述消息包含网络的策略 和计费控制能力信息, 所述策略和计费控制能力信息指示网络是否能对用户设 备的业务进行策略和计费控制;
当所述用户设备的业务需要进行所述策略和计费控制时,根据所述消息下 发媒体消息给所述策略控制和计费规则功能实体, 所述媒体消息用于触发网络 对所述用户设备所请求的业务进行策略和计费控制, 所述媒体消息中包含与所 述策略和计费控制能力信息对应的指示信息。
9、 如权利要求 8所述的方法, 其特征在于, 所述接收策略控制和计费规则 功能实体发送的消息之前还包括:
向所述策略控制和计费规则功能实体发送订阅消息, 所述订阅消息用于订 阅所述网络的策略和计费控制能力信息; 或,
向所述策略控制和计费规则功能实体发送业务媒体消息, 相应地, 接收策 略控制和计费规则功能实体发送的消息具体为接收策略控制和计费规则功能 实体发送的根据所述业务媒体消息返回的拒绝消息。
10、 如权利要求 8所述的方法, 其特征在于, 还包括:
当所述用户设备所请求的业务不需要进行策略和计费的控制时, 直接通 知, 或通过接入网络发现和选择功能实体通知所述用户设备发起资源请求。
11、 如权利要求 8所述的方法, 其特征在于, 还包括: 当所述用户设备所 请求的业务不需要进行策略和计费的控制时,
获得所述用户设备中所在拜访域的信息;
根据所述拜访域的信息获知该拜访域下所有的用户设备, 并通知所述所有 的用户设备发起资源请求。
12、 如权利要求 10或 11所述的方法, 其特征在于, 所述获得用户设备在拜 访域的信息具体是: 从接收到策略控制和计费规则功能实体发送的消息中解析 获得; 或从网^ 入信息中获得。
13、 如权利要求 8至 11任一项所述的方法, 其特征在于, 若所述网络是否 能对用户设备的业务进行策略和计费控制为: 网络不能对用户设备的业务进行 服务质量的授权, 则所述媒体消息中包含与所述策略和计费控制能力信息对应 的指示信息具体为: 指示所述用户设备不向网络请求服务质量的信息, 或指示 所述网络对用户设备的业务进行预授权。
14、 一种应用层功能实体 AF, 其特征在于, 包括:
消息接收单元, 用于接收策略控制和计费规则功能实体发送的消息, 所述 消息包含网络的策略和计费控制能力信息, 所述策略和计费控制能力信息指示 网络是否能对用户设备的业务进行策略和计费控制;
媒体下发单元, 用于当所述用户设备的业务需要进行所述策略和计费控制 时, 根据所述消息下发媒体消息给所述策略控制和计费规则功能实体, 所述媒 体消息用于触发网络对所述用户设备所请求的业务进行策略和计费控制, 所述 媒体消息中包含与所述策略和计费控制能力信息对应的指示信息。
15、 如权利要求 14所述的应用层功能实体, 其特征在于, 还包括: 通知单 元, 用于当所述用户设备所请求的业务不需要进行策略和计费的控制时, 直接 通知, 或通过接入网络发现和选择功能实体通知所述用户设备发起资源请求。
16、 如权利要求 14所述的应用层功能实体, 其特征在于, 还包括: 拜访域获得单元, 用于当用户设备请求的业务不需要进行策略和计费控 制, 获得用户设备所在拜访域的信息;
第二通知单元, 用于根据所述拜访域的信息获知该拜访域下所有的用户设 备, 并通知所述所有的用户设备发起资源请求。
17、 如权利要求 14至 16任一项所述的应用层功能实体, 其特征在于, 还包 括:
订阅单元, 用于发送订阅消息, 所述订阅消息用于订阅网络的策略和计费 控制能力信息。
18、 一种策略控制和计费规则功能实体 PCRF, 其特征在于, 包括: 订阅接收单元, 用于接收应用层功能实体对策略和计费控制 PCC能力变化 的订阅;
消息发送单元, 漫游场景下, 用于在检测到所述 PCC能力变化后, 将所述 PCC能力变化结果上报给应用层功能实体。
19、 如权利要求 18所述的策略控制和计费规则功能实体, 其特征在于, 还 包括:
确定单元, 用于确定网络的策略和计费控制能力信息, 所述策略和计费控 制能力信息指示网络是否能对用户设备的业务进行策略和计费控制的能力;
20、 如权利要求 18所述的策略控制和计费规则功能实体, 其特征在于, 所 述消息发送单元, 具体用于根据所述确定消息确定的能力, 发送消息给应用层
功能实体, 指示所述应用层功能实体进行应用层会话的处理, 所述消息中包含 所述策略和计费控制能力信息。
21、 如权利要求 18所述的策略控制和计费规则功能实体, 其特征在于, 还 包括: 触发单元, 用于当接收到所述应用层功能实体根据所述消息发送单元发 送的消息下发的媒体消息, ^^据所述媒体消息触发相应的网络设备对所述用户 设备的业务进行策略和计费控制, 所述媒体消息中包含: 与所述策略和计费控 制能力信息对应的指示信息。
22、 一种策略和计费控制的处理系统, 其特征在于, 包括: 策略控制和计 费规则功能实体和应用层功能实体;
所述策略控制和计费规则功能实体, 用于确定网络的策略和计费控制能力 信息, 所述策略和计费控制能力信息指示网络是否能对用户设备的业务进行策 略和计费控制; 发送消息给应用层功能实体, 所述消息中包含: 所述策略和计 费控制能力信息;
所述应用层功能实体, 用于接收策略控制和计费规则功能实体发送的所述 消息, 下发媒体消息, 所述媒体消息中包含与所述策略和计费控制的信息对应 的指示信息, 所述媒体消息用于触发网络对所述用户设备所请求的业务进行策 略和计费控制。
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