WO2013155942A1 - 策略和计费控制方法、v-pcrf及v-ocs - Google Patents

策略和计费控制方法、v-pcrf及v-ocs Download PDF

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Publication number
WO2013155942A1
WO2013155942A1 PCT/CN2013/073961 CN2013073961W WO2013155942A1 WO 2013155942 A1 WO2013155942 A1 WO 2013155942A1 CN 2013073961 W CN2013073961 W CN 2013073961W WO 2013155942 A1 WO2013155942 A1 WO 2013155942A1
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WO
WIPO (PCT)
Prior art keywords
visited network
user
network
information
roaming
Prior art date
Application number
PCT/CN2013/073961
Other languages
English (en)
French (fr)
Inventor
吴中华
周晓云
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/394,290 priority Critical patent/US9641697B2/en
Priority to EP13777964.1A priority patent/EP2827623B1/en
Publication of WO2013155942A1 publication Critical patent/WO2013155942A1/zh

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Classifications

    • 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
    • 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
    • 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
    • H04M15/64—On-line charging system [OCS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/082—Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for processing subscription information, a policy and a charging control method, an online charging method, a visited network, a visited network policy control and charging rule function entity (V-PCRF), and a visit. Network Online Billing System (V-OCS).
  • V-PCRF visited network policy control and charging rule function entity
  • V-OCS Network Online Billing System
  • BACKGROUND Local Break Out refers to that service data used by a user in a roaming situation is directly transmitted to a destination via a visited network without being routed from a visited network to a network, and then transmitted through a gateway of the home network. Give the destination.
  • the locally groomed service is handled directly by the visited place, and there is no need to use the route between the home network and the visited network. This approach not only ensures a good user experience, but also reduces operating costs by saving bandwidth between different operators' networks.
  • EPS Evolved Packet System
  • 3GPP 3rd Generation Partnership Project
  • AF Application Function Entity
  • PCRF Policy and Charging Rules Function
  • H-PCRF Home Network PCRF
  • V-PCRF V-PCRF
  • PCRF provides network control rules based on service data flows, including network data Flow detection, Gating Control, Quality of Service (QoS) control, and data flow-based charging rules.
  • the PCRF sends its policy and charging rules to the Policy and Control Enforcement Function (PCEF).
  • PCEF Policy and Control Enforcement Function
  • the PCRF also needs to ensure that these rules are consistent with the user's subscription information.
  • the basis for the development of the policy and the charging rule by the PCRF includes: obtaining information related to the service from the AF; obtaining the subscription information with the user policy charging control from the Subscription Profile Repository (SPR); acquiring the bearer-related network from the PCEF Information.
  • SPR Subscription Profile Repository
  • the Policy and Charging Enforcement Function Entity is usually located in the Gateway (Gate Way, GW for short), and performs the policy and charging rules defined by the PCRF on the bearer plane.
  • the PCEF detects the service data flow according to the service data flow filter in the rule sent by the PCRF, and then executes the policy and charging rules formulated by the PCRF for these service data flows.
  • the PCEF performs QoS authorization according to the rules sent by the PCRF, and performs gate control according to the execution of the AF.
  • the charging rule sent by the PCRF the PCEF performs a corresponding service data flow charging operation, and the charging can be either online charging or offline charging.
  • PCEF needs to perform credit management with the Online Charging System (OCS).
  • OCS Online Charging System
  • OFCS Offline Charging System
  • the interface between the PCEF and the PCRF is a Gx interface
  • the interface with the OCS is a Gy interface
  • the interface between the OFCS and the OFCS is a Gz interface.
  • PCEFs are generally located on the gateway of the network, such as the GPRS Gateway Support Node (GGSN) in GPRS and the Packet Data Gateway (PDG) in I-WLAN.
  • GGSN GPRS Gateway Support Node
  • PDG Packet Data Gateway
  • BBERF Bearer Binding and Event Reporting Function
  • the BBERF is located at the S-GW.
  • the BBERF is located in the trusted non-3GPP access gateway.
  • the BBERF is located in the evolved packet.
  • Evolved Packet Data Gateway (ePDG) At this time, the PCEF no longer performs the bearer binding function.
  • the SPR stores user policy charging control subscription information related to policy control and charging.
  • SPR The interface between the PCRF and the PCRF is the Sp interface.
  • OCS and PCEF are used to control and manage user credit under online charging mode.
  • the PCEF is located on the visited network to visit the Public Public Mobile Network (VPLMN), and the policy and charging rule information is transmitted from the home network PCRF (ie, H-PCRF) to the visited network through the S9 interface.
  • the PCRF ie V-PCRF
  • the PCEF is then passed to the PCEF located on the visited network via the Gx interface and to the BBERF located on the visited network via the Gxx interface.
  • the PCEF visiting the network connects to the OFCS of the visited network through the Gz interface, and connects to the OCS of the home network through the Gy interface.
  • the related technology has not been studied in depth.
  • V-OCS visited network online charging system
  • H-OCS home network online charging system
  • H-OCS home network online charging system
  • the policy and charging rules in the local grooming roaming scenario are dominated by the home network PCRF (ie, H-PCRF), and the credit management is controlled by the home network OCS (ie, H-OCS), and the user can only sign roaming with the home network operator.
  • the subscription information for the user to sign the roaming data service can only be stored in the home network.
  • the user cannot use the SIM/USIM card assigned by the home network and the Mobile Subscriber International ISDN number (MSISDN) and the visited network operator to sign the roaming data service.
  • MSISDN Mobile Subscriber International ISDN number
  • the ISDN is the integrated service digital network.
  • User-signed local data services, roaming data services, and circuit domain services cannot be split and provided by different operators.
  • the quality of service or tariffs of roaming data services provided by the home network operator is not competitive, the user may still Other services provided by the home network operator are required and the roaming data service provided by it must be tolerated.
  • the local grooming roaming scenario developed by the related technology cannot be truly advantageous because the policy and charging control and credit management are still dominated by the home network.
  • Embodiments of the present invention provide a method for processing subscription information, a policy, a charging control method, an online charging method, a visited network, a V-PCRF, and a V-OCS, to solve
  • the quality of service or tariff of the provided roaming data service is not competitive, the user must endure the problem of the roaming data service provided by the user because it needs other services provided by the home network operator.
  • An embodiment of the present invention provides a method for processing subscription information, where the method includes: the visited network receives the visited network subscription information and the account information of the roaming user, and the visited network subscription information, the account information, and the home network subscription information of the roaming user and The account information uses the same user identification information; the visited network saves the visited network subscription information and the account information of the roaming user.
  • the visited network subscription information of the roaming user includes a local grooming roaming data service subscribed by the roaming user to the visited network operator, and the visited network account information of the roaming user includes an IP connection for the roaming user.
  • IP-CAN An access network (IP-CAN) session performs balance information for visiting a network credit authorization; and/or the user identification information includes a user identification and/or a user number, the user identification including an International Mobile Subscriber Identity (IMSI), The subscriber number includes a Mobile Station International Integrated Services Digital Network Number (MSISDN); and the subscriber identification information is assigned by the home network.
  • IMSI International Mobile Subscriber Identity
  • MSISDN Mobile Station International Integrated Services Digital Network Number
  • the embodiment of the present invention further provides a policy and charging control method, which is applied to a local grooming roaming scenario, and the method includes: the visited network policy control and charging rule function entity (V-PCRF) receives the gateway of the visited network.
  • IP-CAN IP connection access network
  • IP-PCRF IP connection access network
  • the IP-CAN session is to use the visited network to perform the policy decision, and obtains the visited network subscription information of the roaming user from the visited network subscriber subscription database (V-SPR), and generates a policy and charging according to the visited network subscription information.
  • Control (PCC) rules PCC
  • the V-PCRF determines, according to the IP-CAN session establishment indication message, that the roaming user's IP-CAN session is a policy decision by using a visited network subscription, and the method includes: the V-PCRF according to the IP-CAN session Establish a packet data network included in the indication message The access point name of the network identifier is used to determine that the session of the roaming user is a policy decision to use the visited network to sign a contract.
  • the V-PCRF obtains the visited network subscription information of the roaming user from the V-SPR, including: the V-PCRF sends a subscription data request to the V-SPR, and receives the V-SPR according to the The subscription network subscription information obtained by the subscription data request.
  • the method further includes: the V-PCRF The V-SPR sends a subscription update event notification.
  • the V-PCRF obtains the visited network subscription information of the roaming user from the V-SPR
  • the method further includes: the V-PCRF receiving the V-SPR transmission The latest visited network subscription information of the roaming user; the V-PCRF finds that the PCC rule needs to be updated during the process of revisiting the visited policy, and sends the latest PCC rule to the gateway of the visited network.
  • the user identification information used by the visited network subscription information of the roaming user saved in the V-SPR is the same as the user identification information used by the roaming user's home network subscription information, and the user identification information is used.
  • the user identification information includes a user identifier and/or a user number, and the user identifier includes an International Mobile Subscriber Identity (IMSI), and the subscriber number includes a Mobile Station International Integrated Services Digital Network Number (MSISDN).
  • IMSI International Mobile Subscriber Identity
  • MSISDN Mobile Station International Integrated Services Digital Network Number
  • the embodiment of the present invention further provides an online charging method, which is applied to a local grooming roaming scenario, and the method includes: visiting a network online charging function entity (V-OCS) to receive a credit control request message sent by a gateway of the visited network; Determining, by the V-OCS, the roaming user's IP connection access network according to the credit control request message
  • V-OCS network online charging function entity
  • IP-CAN IP-CAN
  • the V-OCS determines, according to the credit control request message, that the roaming user's IP-CAN session is directly using the visited network credit control, including: the V-OCS according to the packet included in the credit control request message
  • the access point name of the data network identifier determines that the roaming user's IP-CAN session is directly using the visited network credit control.
  • the visited network subscription information of the roaming user acquired by the V-OCS from a local database or an external database located in the visited network is the same as the user identification information used by the home network subscription information of the roaming user, and
  • the user identification information is allocated by the home network;
  • the user identification information includes a user identifier and/or a user number, and the user identifier includes an International Mobile Subscriber Identity (IMSI), and the subscriber number includes a mobile station international integrated service digital network number. (MSISDN); and/or account information of the roaming user, including balance information for performing a visited network credit authorization for the roaming user's IP-CAN session.
  • IMSI International Mobile Subscriber Identity
  • MSISDN mobile station international integrated service digital network number
  • the embodiment of the present invention further provides a visited network
  • the network includes: a receiving module, configured to receive the visited network subscription information and account information of the roaming user, and the visited network subscription information, the account information, and the home network subscription information of the roaming user And the account information uses the same user identification information; the saving module is configured to save the visited network subscription information and the account information of the roaming user.
  • the visited network subscription information of the roaming user includes a local grooming roaming data service subscribed by the roaming user to the visited network operator, and the visited network account information of the roaming user includes an IP connection for the roaming user.
  • An access network (IP-CAN) session performs balance information for visiting a network credit authorization; and/or the user identification information includes a user identification and/or a user number, the user identification including international Mobile Subscriber Identity (IMSI), the subscriber number including a Mobile Station International Integrated Services Digital Network Number (MSISDN); and the subscriber identification information is assigned by the home network.
  • IMSI international Mobile Subscriber Identity
  • MSISDN Mobile Station International Integrated Services Digital Network Number
  • the embodiment of the present invention further provides a visited network policy control and charging rule function entity (V-PCRF), which is applied to a local grooming roaming scenario, where the V-PCRF includes: a receiving module, configured to send a gateway that receives the visited network.
  • V-PCRF visited network policy control and charging rule function entity
  • IP-CAN IP connection access network
  • a processing module configured to determine, according to the IP-CAN session establishment indication message, that the roaming user's IP-CAN session is a policy decision by using a visited network subscription, Obtaining the visited network subscription information of the roaming user from the visited network subscriber subscription database (V-SPR), and generating a policy and charging control (PCC) rule according to the visited network subscription information; and sending a module, configured to visit the network
  • the gateway of the network sends the PCC rules.
  • the processing module is configured to determine, according to the access point name of the packet data network identifier included in the IP-CAN session establishment indication message, that the session of the roaming user is a policy decision by using a visited network subscription.
  • the processing module is configured to send a subscription data request to the V-SPR, and receive the visited network subscription information obtained by the V-SPR according to the subscription data request.
  • the sending module is further configured to: after determining, according to the IP-CAN session establishment indication message, that the roaming user's IP-CAN session is to use the visited network to sign a policy decision, sending a subscription update to the V-SPR
  • the processing module is further configured to: receive the latest visited network subscription information of the roaming user that is sent by the V-SPR; and find that the PCC rule needs to be updated during the process of revisiting the visited policy. Sending the latest PCC rules to the gateway of the visited network.
  • the user identification information used by the visited network subscription information of the roaming user saved in the V-SPR is the same as the user identification information used by the roaming user's home network subscription information, and the user identification information is used.
  • the user identification information includes a user identifier and/or a user number, and the user identifier includes an International Mobile Subscriber Identity (IMSI), and the subscriber number includes a Mobile Station International Integrated Services Digital Network Number (MSISDN).
  • IMSI International Mobile Subscriber Identity
  • MSISDN Mobile Station International Integrated Services Digital Network Number
  • the embodiment of the present invention further provides a visited network online charging system (V-OCS), which is applied to a local grooming roaming scenario, where the V-OCS includes: a receiving module, configured to receive a credit control request sent by a gateway of the visited network a processing module, configured to perform a visit credit decision according to the credit control request message, to generate a credit control decision of the visited place; and a sending module, configured to send the credit control of the visited place to the gateway of the visited network ,
  • V-OCS visited network online charging system
  • the subscription and account balance management module is configured to locally save and manage the visited network subscription information of the roaming user, and the visited network account information of the roaming user; or for the V-OCS to obtain from the external database located in the visited network or Updating the visited network subscription information and the visited network account information; the visited network account information of the roaming user includes balance information for visiting a network credit authorization.
  • the processing module is configured to: determine, according to the access point name of the packet data network identifier included in the credit control request message, that the IP-CAN session of the roaming user is signed by the visited network to perform credit decision,
  • the subscription and account balance management module acquires the visited network subscription information and the associated account balance information of the roaming user, and the current information in the credit control request message according to the visited network subscription information of the roaming user and the associated account balance information.
  • Each of the activated billing keys performs a lottery, balance check, and credit authorization to generate credit control decisions for the visited place.
  • the method for processing the subscription information, the policy and the charging control method, the online charging method, the visited network, the V-PCRF, and the V-OCS enable the user to sign the roaming to the visited network operator by using the user identification information assigned by the home network operator.
  • the data service, and the visited network can independently implement policy and charging control and online charging for the local grooming roaming access users.
  • FIG. 1 is a schematic diagram of a policy and a charging control architecture for a local grooming roaming scenario in the related art
  • FIG. 2 is a schematic diagram of a policy and a charging control architecture for considering an OCS interaction in a local grooming roaming scenario in the related art
  • FIG. 3 is a signaling flowchart of an embodiment of an IP-CAN session establishment process according to the present invention
  • FIG. 4 is a signaling flowchart of a policy and charging rule re-decision embodiment of a visited network subscription modification according to the present invention
  • FIG. 6 is a schematic structural diagram of an embodiment of a V-OCS according to the present invention
  • FIG. 7 is a schematic structural diagram of an embodiment of a visited network according to the present invention.
  • the embodiment of the present invention provides a method for processing subscription information, which is described from the perspective of a visited network.
  • the method includes: Step 11: The visited network receives the visited network subscription information and account information of the roaming user, and the roaming user The visited network subscription information and the account information and the home network subscription information and the account information use the same user identification information; wherein the visited network subscription information of the roaming user includes the local grooming roaming data that the roaming user subscribes to the visited network operator.
  • the visited network account information of the roaming user includes balance information for performing a visited network credit authorization on an IP-connected network (IP-CAN) session of the roaming user; and/or, the user identification information includes a subscriber identity and/or a subscriber number, the subscriber identity comprising an International Mobile Subscriber Identity (IMSI), the subscriber number comprising a Mobile Station International Integrated Services Digital Network Number (MSISDN); and the subscriber identity information is assigned by the home network.
  • IMSI International Mobile Subscriber Identity
  • MSISDN Mobile Station International Integrated Services Digital Network Number
  • the visited network saves the visited network subscription information and the account information of the roaming user.
  • the visited network can save the subscription information and account information of the roaming user in the V-SPR, V-OCS or other network elements of the visited network.
  • the subscription information and account information may be stored separately or in a centralized manner.
  • the processing method of the above contract information enables the user to sign a roaming service across the operator without changing the card without changing the number.
  • the embodiment of the present invention further provides a policy and charging control method, which is applied to a local grooming roaming scenario. The embodiment is described from the perspective of a V-PCRF.
  • the method includes: Step 21: Visiting network policy control and charging rules
  • the function entity (V-PCRF) receives an IP connection access network (IP-CAN) session establishment indication message sent by the gateway of the visited network;
  • the IP-CAN session is to make a policy decision by using the visited network to sign the contract, and obtain the visited network subscription information of the roaming user from the visited network user subscription database (V-SPR), and generate a strategy and a plan according to the visited network subscription information.
  • V-SPR visited network user subscription database
  • the V-PCRF may determine, according to the access point name of the packet data network identifier included in the IP-CAN session establishment indication message, that the session of the roaming user is a visited network Sign up for strategic decisions. Obtaining, by the V-PCRF, the visited network subscription information of the roaming user, where the V-PCRF sends a subscription data request to the V-SPR, and receiving the V-SPR according to the signing The visited network subscription information obtained by the data request.
  • PCC fee control
  • the method further includes: the V-PCRF to the The V-SPR sends a subscription update event notification.
  • the V-PCRF obtains the visited network subscription information of the roaming user from the V-SPR
  • the method further includes: the V-PCRF receiving the V-SPR transmission The latest visited network subscription information of the roaming user; the V-PCRF finds that the PCC rule needs to be updated during the process of revisiting the visited policy, and sends the latest PCC rule to the gateway of the visited network.
  • the user identification information used by the roaming user's visited network subscription information stored in the V-SPR is the same as the user identification information used by the roaming user's home network subscription information, and the user identification is The information is distributed by the home network; the user identification information includes a user identifier and/or a user number, the user identifier includes an IMMSI, and the user number includes an MSISDN. number.
  • Step 23 The V-PCRF sends the PCC rule to a gateway of the visited network.
  • the above policy and charging control method enable the V-PCRF to independently perform the visited policy and the charging control.
  • the embodiment of the present invention further provides an online charging method, which is applied to a local roaming roaming scenario.
  • the embodiment is described from the perspective of a V-OCS.
  • the method includes: Step 31: Visiting an online charging system of the network (V -OCS) receiving a credit control request message sent by the gateway of the visited network; Step 32: The V-OCS determines, according to the credit control request message, that the roaming user's IP connection access network (IP-CAN) session is directly used for visiting
  • IP-CAN IP connection access network
  • the V-OCS determines, according to the access point name of the packet data network identifier included in the credit control request message, whether the session of the roaming user directly visits the network credit control or H- The OCS requests credit control.
  • the V-OCS acquires the worship of the roaming user.
  • the network subscription information and the associated account balance information, the rating, the balance check, and the credit authorization are performed on each of the currently activated charging keys in the credit control request message according to the visited network subscription information of the roaming user and the associated account balance information.
  • the credit control decision of the visited place is generated, and when the credit authorization is successful, the account balance information of the roaming user is updated, and the authorized credit is subtracted from the core.
  • the visited network subscription information of the roaming user acquired by the V-OCS from a local database or an external database located in the visited network is the same as the user identification information used by the roaming user's home network subscription information, and the user identification is The information is distributed by the home network; the user identification information includes a user identifier and/or a user number, and the user identifier includes an International Mobile Subscriber Identity (IMSI), and the subscriber number includes a mobile station international integrated service digital network number (MSISDN).
  • IMSI International Mobile Subscriber Identity
  • MSISDN mobile station international integrated service digital network number
  • the account information of the roaming user includes balance information for performing a visited network credit authorization for the roaming user's IP-CAN session.
  • Step 33 The V-OCS sends the credit control decision to a gateway of the visited network. It should be noted that the credit control of the above V-OCS may exist without relying on the policy and charging control of the PCRF. The above online charging method enables the V-OCS to independently perform the visitor credit control.
  • Embodiment 1 This embodiment describes that during the IP-CAN session establishment process, the V-PCRF and the V-OCS can directly implement the visitor policy control and online for the IP-CAN session according to the data service signed by the roaming user and the VPLMN operator. Billing, the process includes the following steps:
  • the gateway GW/PCEF located in the visited network receives the IP-CAN session request message sent by the UE, and the gateway accepts the request message and allocates an IP address to the UE.
  • the GW/PCEF sends an IP-CAN session establishment indication message to the visited PCRF (V-PCRF), where the message carries the user identifier IMSI, the user number MSISDN, the network access identifier (NAI), and the packet data network.
  • V-PCRF Visited PCRF
  • PDN Packet Data Network
  • APN Access Point Name
  • the V-PCRF determines that the user is a roaming user according to the IMSI or the MSISDN or the NAI, and the V-PCRF pre-configures the IP-CAN session access under each APN to use the home network subscription or the network subscription to make a policy decision; For a roaming user and the APN to which it is connected is configured to make a policy decision using the home network subscription, the V-PCRF sends an IP-CAN to the H-PCRF to determine the PCC rule that is ultimately delivered to the V-PCEF. If this APN is configured to use local signing for policy decisions, go directly to the following steps;
  • the subscription data request is sent to the V-SPR to obtain, and the V-SPR subscription user subscribes to the update event notification when online.
  • the V-PCRF performs authorization and policy determination according to the user visiting the network subscription, the visited network policy, the bearer attribute, etc., formulates the PCC rule, and determines to perform online charging for the IP-CAN.
  • the PCC rule includes a Charging Key, and optionally includes a Service Identifier, a Charging Method (here is an online charging), and a Metering Method (such as a traffic). , duration, event, and flow/time combination);
  • the V-PCRF sends an IP-CAN session establishment confirmation message to the V-PCEF, where the message carries the PCC rule and the OCS identifier of the visited network that supports online charging, such as: accessing a primary OCS address and an alternate OCS address of the network.
  • Information the specific definition of the way is not limited here;
  • the GW/PCEF sends a credit control request message to the V-OCS to request a credit for each Charging Key of the activated PCC rule, where the message carries the user identifier IMSI, The user number MSISDN, the Network Access Identifier (NAI), the Packet Data Network (PDN), the Access Point Name (APN), and the Charging-Key;
  • the V-OCS determines, according to the IMSI or the MSISDN or the NAI in the credit control request message, that the user is a roaming user, and the V-OCS pre-configures the IP-CAN session under each APN to directly use the visited network credit control or the H-OCS.
  • Requesting home network credit control if the current user is a roaming user and the APN it accesses is configured to request home network credit control from the H-OCS, the V-OCS forwards the credit control request message to the H-OCS and returns according to the H-OCS
  • the credit control decision determines the credit control decision that is ultimately issued to the V-OCS. If this APN is configured to use the network credit control directly, go directly to the following steps:
  • the V-OCS performs credit authorization for each requested Charging Key according to the network policy. If the V-OCS finds that the user has run out of credit, the authorization will be denied. In addition, the V-OCS will subscribe to the Credit Re-authorization Triggers for each requested Charging Key and the Termination Action when the Final Granted Unit is exhausted according to the network policy;
  • the V-OCS returns a credit control response message to the GW/PCEF, and carries a credit control decision in the message;
  • GW/PCEF returns to establish an IP-CAN session response message, and the PCEF performs the received Credit control decisions.
  • the PCEF initiates a credit control request message requesting Credit; when the Credit Re-authorization Triggers condition subscribed in the credit control decision is satisfied, the PCEF initiates a credit control request. Message, request Credit; When there is no new Credit authorization, PCEF will perform the final action.
  • Embodiment 2 This embodiment describes that during the IP-CAN session maintenance process, the user's visited network subscription changes, and the V-SPR notifies the V-PCRF to re-do the policy decision.
  • the process includes the following steps:
  • V-SPR determines to send a user subscription update notification to the V-PCRF;
  • the V-SPR sends a user subscription update notification to the V-PCRF, where the user includes the latest visited network subscription information.
  • the V-PCRF reply subscription update notification is confirmed to the SPR; and the S404 and the V-PCRF perform the visitor strategy re-decision;
  • V-PCRF If the V-PCRF re-decision finds that the PCC rule needs to be updated, the V-PCRF sends an IP-CAN session re-authorization request to the V-PCEF, where the latest PCC rule is carried;
  • V-PCEF installs the latest PCC rules, and responds to the IP-CAN session re-authorization response to the V-PCRF.
  • FIG. 5 it is a schematic structural diagram of a V-PCRF embodiment of the present invention, which is applied to a local grooming roaming scenario, where the V-PCRF includes a receiving module 51, a processing module 52, and a sending module 53, where:
  • the receiving module 51 is configured to receive an IP connection access network (IP-CAN) session establishment indication message sent by the gateway of the visited network; the processing module 52 is configured to determine the roaming user according to the IP-CAN session establishment indication message
  • IP-CAN session is to make a policy decision by using the visited network to sign the contract, and obtain the visited network subscription information of the roaming user from the visited network user subscription database (V-SPR), and generate a strategy and a plan according to the visited network subscription information.
  • a fee control (PCC) rule a sending module 53 configured to send the PCC rule to a gateway of the visited network.
  • the processing module 52 is configured to determine, according to the access point name of the packet data network identifier included in the IP-CAN session establishment indication message, that the session of the roaming user is a policy decision by using a visited network subscription; Or specifically, sending a subscription data request to the V-SPR, and receiving the visited network subscription information obtained by the V-SPR according to the subscription data request.
  • the sending module 53 is further configured to: after determining, according to the IP-CAN session establishment indication message, that the roaming user's IP-CAN session is a policy decision by using a visited network subscription, sending a subscription update to the V-SPR
  • the processing module is further configured to: receive the latest visited network subscription information of the roaming user sent by the V-SPR; and find that the PCC rule needs to be updated during the process of revisiting the visited policy Sending the latest PCC rules to the gateway of the visited network.
  • the user identification information used by the roaming user's visited network subscription information stored in the V-SPR is the same as the user identification information used by the roaming user's home network subscription information, and the user identification is The information is distributed by the home network; the user identification information includes a user identifier and/or a user number, the user identifier includes an IMSI, and the user number includes an MSISDN number.
  • the above V-PCRF does not need to request the PCC rule from the H-PCRF and directly delivers or modifies it to the gateway of the visited network, but obtains the visited network subscription information of the roaming user from the V-SPR, and generates a PCC rule to be issued.
  • the gateway is visited to the network, so that the visited network can independently perform policy and charging control on the roaming user and the data service subscribed by the network.
  • the V-OCS includes a receiving module 61, a processing module 62, a sending module 63, and a subscription and account balance management module 64.
  • the receiving module 61 is configured to receive a credit control request message sent by a gateway of the visited network;
  • the processing module 62 is configured to perform a visit credit decision according to the credit control request message, and generate a credit control decision of the visited place;
  • the sending module 63 is configured to send the credit control decision of the visited place to the gateway of the visited network;
  • the subscription and account balance management module 64 is configured to locally save and manage the visited network subscription information of the roaming user, and the visited network account information of the roaming user, or to obtain the V-OCS from the external database located in the visited network. Or updating the visited network subscription information and the visited network account information; the visited network account information of the roaming user includes balance information for visiting a network credit authorization.
  • the processing module 62 is configured to: determine, according to the access point name of the packet data network identifier included in the credit control request message, that the IP-CAN session of the roaming user is signed by the visited network to make a credit decision,
  • the subscription and account balance management module acquires the visited network subscription information of the roaming user and the associated account and balance information, and the currently activated each of the credit control request messages according to the visited network subscription information of the roaming user and the associated account balance information.
  • the billing button performs the rating, balance check and credit authorization, generates the credit control decision of the visited place, requests the signing and account balance management module to deduct the authorized credit after the credit authorization is successful, and updates the account balance information of the roaming user.
  • V-OCS does not need to request a credit control decision from the H-OCS and deliver it to the gateway of the visited network, but sends the credit control decision generated by itself to the gateway of the visited network, so that the visited network can independently access the roaming user. Online data billing for data services contracted with this network.
  • the embodiment of the present invention further provides a visited network.
  • the network includes: a receiving module 71 and a saving module 72, wherein: the receiving module 71 is configured to receive the roaming user. Visiting the network subscription information and account information, and the roaming user's visited network subscription information and account information and the home network subscription information and account information use the same user identification information; the saving module 72 is configured to save the visit of the roaming user Network subscription information and the account information.
  • the receiving module and the saving module may be located in a V-SPR, V-OCS or other network element of the visited network.
  • the visited network subscription information and account information may be stored separately or in a centralized manner.
  • the visited network subscription information of the roaming user includes a local grooming roaming data service subscribed by the roaming user to the visited network operator.
  • the visited network account information of the roaming user includes balance information that can be used to make a visited network credit authorization for the roaming user's IP connection access network (IP-CAN) session.
  • the user identification information includes a user identifier and/or a user number, and the user identifier includes an International Mobile Subscriber Identity (IMSI), and the subscriber number includes a mobile station international integrated service digital network number (MSISDN); User identification information is assigned by the home network.
  • the visited network allows users to purchase roaming services across carriers without changing cards.
  • the embodiment of the present invention enables a user to sign a roaming data service to a visited network operator by using the user identification information assigned by the home network operator, and the visited network can independently implement policy and charging control for the local grooming roaming access user. Online billing.

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Abstract

一种签约信息的处理方法、策略和计费控制方法、在线计费方法、拜访网络、V-PCRF及V-OCS，其中，签约信息的处理方法包括：拜访网络接收漫游用户的拜访网络签约信息及账户信息，且该漫游用户的拜访网络签约信息及账户信息和归属网络签约信息及账户信息使用相同的用户识别信息；所述拜访网络保存该漫游用户的所述拜访网络签约信息及所述账户信息。

Description

策略和计费控制方法、 V-PCRF及 V-OCS
技术领域 本发明涉及通信领域， 尤其涉及一种签约信息的处理方法、 策略和计费 控制方法、 在线计费方法、 拜访网络、 拜访网络策略控制与计费规则功能实 体（V-PCRF )及拜访网络在线计费系统（V-OCS ) 。
背景技术 本地疏导 (Local Break Out, 简称为 LBO)是指用户在漫游情况下使用的 业务数据直接经拜访网络传送给目的地，而无需从拜访网络路由回归属网络， 再经由归属网络的网关传送给目的地。 本地疏导的业务由拜访地直接处理， 不需要使用归属网络和拜访网络之间的路由。 这种方式不但可以保证用户良 好的体验， 而且通过节约不同运营商网间的带宽， 能够降低运营成本。 在当前的第三代合作伙伴计划 (3rd Generation Partnership Project, 简称为 3GPP)无线通信标准组织中定义的 R8 的演进的分组系统 (Evolved Packet System , 简称为 EPS)本地疏导场景中使用的策略和计费控制（Policy and Charging Control, 简称为 PCC)架构如图 1所示。 应用功能实体 (Application Function, 简称为 AF), 提供业务应用的接入 点， 这些业务应用所使用的网络资源需要进行动态地策略控制。 在业务面进 行参数协商时， AF 将相关业务信息传递给策略控制与计费规则功能实体 (Policy and Charging Rules Function, 简称为 PCRF)。 如果这些业务信息与 PCRF的策略相一致， 则 PCRF接受该协商； 否则， PCRF拒绝该协商， 并在 反馈中同时给出 PCRF可接受的业务参数。随后， AF可将这些参数返回给用 户设备 (User Equipment , 简称为 UE)。 其中， AF和 PCRF之间的接口是 Rx 接口。 策略控制与计费规则功能实体 (PCRF)是 PCC的核心（图中包括归属网络 PCRF(H-PCRF)和 V-PCRF(V-PCRF)) , 负责策略决策和计费规则的制定。
PCRF提供了基于业务数据流的网络控制规则， 这些网络控制包括业务数据 流的检测、 门控 (Gating Control), 服务质量 (Quality of Service, 简称为 QoS) 控制以及基于数据流的计费规则等。 PCRF将其制定的策略和计费规则发送 给策略和计费执行功能实体 (Policy and Control Enforcement Function , 简称为 PCEF)执行， 同时， PCRF还需要保证这些规则和用户的签约信息一致。 PCRF 制定策略和计费规则的依据包括： 从 AF获取与业务相关的信息； 从用户签 约数据库 (Subscription Profile Repository,简称为 SPR)获取与用户策略计费控 制签约信息； 从 PCEF获取与承载相关网络的信息。 策略和计费执行功能实体 (PCEF)通常位于网关 (Gate Way, 简称为 GW) 内， 在承载面执行 PCRF所制定的策略和计费规则。 PCEF按照 PCRF所发 送的规则中的业务数据流过滤器对业务数据流进行检测， 进而对这些业务数 据流执行 PCRF所制定的策略和计费规则。 在承载建立时， PCEF按照 PCRF 发送的规则进行 QoS授权， 并根据 AF的执行进行门控控制。 根据 PCRF发 送的计费规则， PCEF执行相应的业务数据流计费操作， 计费既可以是在线 计费， 也可以是离线计费。 如果是在线计费， 则 PCEF需要和在线计费系统 (Online Charging System,简称为 OCS)—起进行信用管理。离线计费时， PCEF 和离线计费系统 (Offline Charging System,简称为 OFCS)之间交换相关计费信 息。 PCEF与 PCRF之间的接口是 Gx接口， 与 OCS之间的接口是 Gy接口， 与 OFCS之间的接口是 Gz接口。 PCEF—般都位于网络的网关上， 如 GPRS 中的 GPRS 网关支持节点 (GGSN)以及 I-WLAN 中的分组数据网关 (Packet Data Gateway, 简称为 PDG)。 承载绑定和事件报告功能实体（Bearer Binding and Event Reporting Function, 简称为 BBERF)的功能包括承载绑定、 上行承载绑定的验证以及事 件报告。 当 UE通过演进的通用陆基无线接入网 （E-UTRAN )接入， 并且服 务网关（ S-GW )与交换网关（ P-GW )之间釆用代理移动 IPv6协议（ PMIPv6 ) 协议时， BBERF就位于 S-GW, 当 UE通过可信任非 3GPP接入系统接入时， BBERF位于可信任非 3GPP接入网关， 当 UE通过不可信任非 3GPP接入系 统接入时， BBERF位于演进的分组数据网关 (Evolved Packet Data Gateway , 简称为 ePDG)。 此时， PCEF不再执行承载绑定功能。
SPR存储了和策略控制与计费相关的用户策略计费控制签约信息。 SPR 和 PCRF之间的接口是 Sp接口。
OCS和 PCEF—起进行在线计费方式下用户信用的控制和管理。
OFCS与 PCEF—起完成离线计费方式下的计费操作。 在本地疏导漫游场景下， PCEF位于拜访网络拜访公共陆上移动网 （Visit Public Land Mobile Network, VPLMN), 策略和计费规则信息通过 S9接口从 归属网络 PCRF (即 H-PCRF)传递到拜访网络的 PCRF (即 V-PCRF), 然后再通 过 Gx接口传递给位于拜访网络的 PCEF , 以及， 通过 Gxx接口传递给位于 拜访网络的 BBERF。拜访网络的 PCEF通过 Gz接口连接到拜访网络的 OFCS , 通过 Gy接口连接到归属网络的 OCS。 对于本地输导漫游场景下的在线计费问题，相关技术还没有深入的研究。 仅提出了一个基本框架， 如图 2所示。 在拜访网络存在拜访网络在线计费系 统 (V-OCS) ,负责将归属网络在线计费系统 (H-OCS)下发的信用控制策略下发 给拜访网络 PCEF。 同时将 PCEF上报的在线计费信息上报给 H-OCS。 相关技术要求本地疏导漫游场景下的策略和计费规则由归属网络 PCRF (即 H-PCRF )主导， 信用管理由归属网络 OCS (即 H-OCS )控制， 用户只 能和归属网络运营商签订漫游数据服务， 用户签订漫游数据服务的签约信息 只能存放于归属网络。 用户无法使用归属网络分配的 SIM/USIM卡及移动台 国际 ISDN号码 (Mobile Subscriber International ISDN number, MSISDN)和拜 访网络运营商再签订漫游数据服务， 其中， ISDN是综合业务数字网。 用户 签约的本地数据服务、 漫游数据服务、 电路域服务无法拆分并由不同运营商 提供， 当归属网络运营商提供的漫游数据服务的服务质量或资费不具有竟争 力时， 用户可能因为仍需要归属网络运营商提供的其它服务而必须忍受其提 供的漫游数据服务。 相关技术制定的本地疏导漫游场景因为策略和计费控制 及信用管理仍由归属网络主导而无法发挥真正的优势。
发明内容 本发明实施例提供了一种签约信息的处理方法、 策略和计费控制方法、 在线计费方法、 拜访网络、 V-PCRF及 V-OCS, 以解决当归属网络运营商提 供的漫游数据服务的服务质量或资费不具有竟争力时， 用户因为需要归属网 络运营商提供的其它服务而必须忍受其提供的漫游数据服务的问题。 本发明实施例提供了一种签约信息的处理方法， 该方法包括： 拜访网络接收漫游用户的拜访网络签约信息及账户信息， 且该漫游用户 的拜访网络签约信息及账户信息和归属网络签约信息及账户信息使用相同的 用户识别信息； 所述拜访网络保存该漫游用户的所述拜访网络签约信息及所述账户信 息。 优选地， 所述漫游用户的拜访网络签约信息包含所述漫游用户向拜访网 络运营商订购的本地疏导漫游数据服务， 所述漫游用户的拜访网络账户信息 包含用于对所述漫游用户的 IP连接接入网 （IP-CAN )会话进行拜访网络信 用授权的余额信息； 和 /或 所述用户识别信息包括用户标识和 /或用户号码，所述用户标识包括国际 移动用户识别码（IMSI ) , 所述用户号码包括移动台国际综合业务数字网号 码（MSISDN ) ； 且所述用户识别信息由归属网络分配。 本发明实施例还提供了一种策略和计费控制方法， 应用于本地疏导漫游 场景下， 该方法包括： 拜访网络策略控制与计费规则功能实体（ V-PCRF )接收拜访网络的网关 发送的 IP连接接入网 （IP-CAN )会话建立指示消息； 所述 V-PCRF 根据所述 IP-CAN会话建立指示消息确定漫游用户的
IP-CAN会话是釆用拜访网络签约进行策略决策， 则从拜访网络用户签约数 据库 （V-SPR ) 中获取所述漫游用户的拜访网络签约信息， 并根据该拜访网 络签约信息生成策略和计费控制 （PCC )规则；
优选地， 所述 V-PCRF根据所述 IP-CAN会话建立指示消息确定漫游用 户的 IP-CAN会话是釆用拜访网络签约进行策略决策， 包括： 所述 V-PCRF根据所述 IP-CAN会话建立指示消息中包含的分组数据网 络标识的接入点名来确定所述漫游用户的会话是釆用拜访网络签约进行策略 决策。 优选地，所述 V-PCRF从 V-SPR中获取所述漫游用户的拜访网络签约信 息， 包括： 所述 V-PCRF向所述 V-SPR发送签约数据请求， 以及接收所述 V-SPR 根据所述签约数据请求获得的所述拜访网络签约信息。 优选地， 所述 V-PCRF根据所述 IP-CAN会话建立指示消息确定漫游用 户的 IP-CAN会话是釆用拜访网络签约进行策略决策之后，所述方法还包括： 所述 V-PCRF向所述 V-SPR发送签约更新事件通知； 所述 V-PCRF从 V-SPR中获取所述漫游用户的拜访网络签约信息之后， 所述方法还包括： 所述 V-PCRF接收所述 V-SPR发送的所述漫游用户的最新拜访网络签约 信息； 所述 V-PCRF在进行拜访地策略重决策的过程中发现需要更新 PCC规 则， 则向所述拜访网络的网关发送最新的 PCC规则。 优选地，所述 V-SPR中保存的所述漫游用户的拜访网络签约信息所使用 的用户识别信息和所述漫游用户的归属网络签约信息所使用的用户识别信息 相同， 且所述用户识别信息由归属网络分配； 所述用户识别信息包括用户标 识和 /或用户号码， 所述用户标识包括国际移动用户识别码（IMSI ) , 所述用 户号码包括移动台国际综合业务数字网号码（ MSISDN ) 。 本发明实施例另提供了一种在线计费方法，应用于本地疏导漫游场景下， 该方法包括： 拜访网络在线计费功能实体（V-OCS )接收拜访网络的网关发送的信用 控制请求消息； 所述 V-OCS根据所述信用控制请求消息确定漫游用户的 IP连接接入网
( IP-CAN )会话是直接釆用拜访网络信用控制， 则从 V-OCS本地数据库或 位于拜访网络的外部数据库中获取所述漫游用户的拜访网络签约信息和相关 联的账户信息， 并根据所述拜访网络签约信息和相关联的账户信息直接生成 拜访地信用控制决策； 所述 V-OCS向所述拜访网络的网关发送所述拜访地信用控制决策。 优选地， 所述 V-OCS 根据所述信用控制请求消息确定漫游用户的 IP-CAN会话是直接釆用拜访网络信用控制， 包括： 所述 V-OCS根据所述信用控制请求消息中包含的分组数据网络标识的 接入点名来确定所述漫游用户的 IP-CAN会话是直接釆用拜访网络信用控 制。 优选地，所述 V-OCS从本地数据库或位于拜访网络的外部数据库中获取 的所述漫游用户的拜访网络签约信息和所述漫游用户的归属网络签约信息所 使用的用户识别信息相同， 且所述用户识别信息由归属网络分配； 所述用户 识别信息包括用户标识和 /或用户号码，所述用户标识包括国际移动用户识别 码（ IMSI ) ,所述用户号码包括移动台国际综合业务数字网号码（ MSISDN )； 和 /或 所述漫游用户的账户信息， 包含用于对漫游用户的 IP-CAN会话进行拜 访网络信用授权的余额信息。 本发明实施例又提供了一种拜访网络， 该网络包括： 接收模块， 设置为接收漫游用户的拜访网络签约信息及账户信息， 且该 漫游用户的拜访网络签约信息及账户信息和归属网络签约信息及账户信息使 用相同的用户识别信息； 保存模块， 设置为保存该漫游用户的所述拜访网络签约信息及所述账户 信息。 优选地， 所述漫游用户的拜访网络签约信息包含所述漫游用户向拜访网 络运营商订购的本地疏导漫游数据服务， 所述漫游用户的拜访网络账户信息 包含用于对所述漫游用户的 IP连接接入网 （ IP-CAN )会话进行拜访网络信 用授权的余额信息； 和 /或 所述用户识别信息包括用户标识和 /或用户号码，所述用户标识包括国际 移动用户识别码（IMSI ) , 所述用户号码包括移动台国际综合业务数字网号 码（MSISDN ) ； 且所述用户识别信息由归属网络分配。 本发明实施例又提供了一种拜访网络策略控制与计费规则功能实体 ( V-PCRF ) , 应用于本地疏导漫游场景下， 该 V-PCRF包括： 接收模块， 设置为接收拜访网络的网关发送的 IP连接接入网（ IP-CAN ) 会话建立指示消息； 处理模块， 设置为根据所述 IP-CAN会话建立指示消息确定漫游用户的 IP-CAN会话是釆用拜访网络签约进行策略决策， 则从拜访网络用户签约数 据库 （V-SPR ) 中获取所述漫游用户的拜访网络签约信息， 并根据该拜访网 络签约信息生成策略和计费控制 （ PCC )规则； 发送模块， 设置为向所述拜访网络的网关发送所述 PCC规则。 优选地， 所述处理模块， 是设置为根据所述 IP-CAN会话建立指示消息 中包含的分组数据网络标识的接入点名来确定所述漫游用户的会话是釆用拜 访网络签约进行策略决策。 优选地， 所述处理模块， 是设置为向所述 V-SPR发送签约数据请求， 以 及接收所述 V-SPR根据所述签约数据请求获得的所述拜访网络签约信息。 优选地， 所述发送模块， 还设置为： 根据所述 IP-CAN会话建立指示消 息确定漫游用户的 IP-CAN会话是釆用拜访网络签约进行策略决策之后， 向 所述 V-SPR发送签约更新事件通知； 所述处理模块，还设置为： 接收所述 V-SPR发送的所述漫游用户的最新 拜访网络签约信息； 以及， 在进行拜访地策略重决策的过程中发现需要更新 PCC规则， 则向所述拜访网络的网关发送最新的 PCC规则。 优选地，所述 V-SPR中保存的所述漫游用户的拜访网络签约信息所使用 的用户识别信息和所述漫游用户的归属网络签约信息所使用的用户识别信息 相同， 且所述用户识别信息由归属网络分配； 所述用户识别信息包括用户标 识和 /或用户号码， 所述用户标识包括国际移动用户识别码（IMSI ) , 所述用 户号码包括移动台国际综合业务数字网号码（MSISDN ) 。 本发明实施例又提供了一种拜访网络在线计费系统（V-OCS ) ， 应用于 本地疏导漫游场景下， 该 V-OCS包括： 接收模块， 设置为接收拜访网络的网关发送的信用控制请求消息； 处理模块， 设置为根据所述信用控制请求消息进行拜访地信用决策， 生 成拜访地的信用控制决策； 发送模块， 设置为向所述拜访网络的网关发送所述拜访地的信用控制决 來，
签约及账户余额管理模块,设置为该 V-OCS本地保存及管理漫游用户的 拜访网络签约信息， 以及漫游用户的拜访网络账户信息； 或用于该 V-OCS 向位于拜访网络的外部数据库获取或更新所述拜访网络签约信息和所述拜访 网络账户信息； 所述漫游用户的所述拜访网络账户信息包含用于拜访网络信 用授权的余额信息。 优选地， 所述处理模块， 是设置为： 根据所述信用控制请求消息中包含 的分组数据网络标识的接入点名来确定漫游用户的 IP-CAN会话是釆用拜访 网络签约进行信用决策， 向所述签约及账户余额管理模块获取所述漫游用户 的拜访网络签约信息及关联的账户余额信息， 根据所述漫游用户的拜访网络 签约信息及关联的账户余额信息对所述信用控制请求消息中当前激活的每个 计费键进行批价、 余额检查和信用授权， 生成拜访地的信用控制决策。 上述签约信息的处理方法、 策略和计费控制方法、 在线计费方法、 拜访 网络、 V-PCRF及 V-OCS, 使得用户可以使用归属网络运营商分配的用户识 别信息向拜访网络运营商签订漫游数据服务， 并且， 拜访网络能够独立对本 地疏导漫游接入用户实施策略和计费控制及在线计费。
附图概述 图 1为相关技术中本地疏导漫游场景的策略和计费控制架构图； 图 2为相关技术中本地疏导漫游场景考虑 OCS交互的策略和计费控制架 构图； 图 3为本发明的 IP-CAN会话建立过程实施例的信令流程图； 图 4为本发明的拜访网络签约修改导致策略和计费规则重决策实施例的 信令流程图； 图 5为本发明 V-PCRF实施例的结构示意图； 图 6为本发明 V-OCS实施例的结构示意图； 图 7为本发明拜访网络实施例的结构示意图。
本发明的较佳实施方式 下文中将结合附图对本发明的实施例进行详细说明。 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任意组合。 本发明实施例提供了一种签约信息的处理方法， 该实施例从拜访网络的 角度进行描述， 该方法包括： 步骤 11、 拜访网络接收漫游用户的拜访网络签约信息及账户信息， 且该 漫游用户的拜访网络签约信息及账户信息和归属网络签约信息及账户信息使 用相同的用户识别信息； 其中， 所述漫游用户的拜访网络签约信息包含所述漫游用户向拜访网络 运营商订购的本地疏导漫游数据服务， 所述漫游用户的拜访网络账户信息包 含用于对所述漫游用户的 IP连接接入网 （IP-CAN )会话进行拜访网络信用 授权的余额信息； 和 /或， 所述用户识别信息包括用户标识和 /或用户号码， 所述用户标识包括国际移动用户识别码（IMSI ) , 所述用户号码包括移动台 国际综合业务数字网号码（MSISDN ) ； 且所述用户识别信息由归属网络分 配。 步骤 12、所述拜访网络保存该漫游用户的所述拜访网络签约信息及所述 账户信息。 拜访网络可以将漫游用户的签约信息及账户信息保存在 V-SPR, V-OCS 或拜访网络的其它网元中。所述签约信息及账户信息可分开存储或集中存储。 上述签约信息的处理方法， 使得用户不换卡不换号即可跨运营商签订漫 游服务。 本发明实施例还提供了一种策略和计费控制方法， 应用于本地疏导漫游 场景下， 该实施例从 V-PCRF角度进行描述， 该方法包括： 步骤 21、 拜访网络策略控制与计费规则功能实体（V-PCRF )接收拜访 网络的网关发送的 IP连接接入网 （IP-CAN )会话建立指示消息； 步骤 22、 所述 V-PCRF根据所述 IP-CAN会话建立指示消息确定漫游用 户的 IP-CAN会话是釆用拜访网络签约进行策略决策， 则从拜访网络用户签 约数据库（V-SPR ) 中获取所述漫游用户的拜访网络签约信息， 并根据该拜 访网络签约信息生成策略和计费控制 （PCC )规则； 在该步骤中， 所述 V-PCRF可以根据所述 IP-CAN会话建立指示消息中 包含的分组数据网络标识的接入点名来确定漫游用户的会话是釆用拜访网络 签约进行策略决策。 所述 V-PCRF从 V-SPR中获取所述漫游用户的拜访网络签约信息，包括： 所述 V-PCRF向所述 V-SPR发送签约数据请求， 以及接收所述 V-SPR 根据所述签约数据请求获得的所述拜访网络签约信息。 另外， 所述 V-PCRF根据所述 IP-CAN会话建立指示消息确定漫游用户 的 IP-CAN会话是釆用拜访网络签约进行策略决策之后， 所述方法还包括： 所述 V-PCRF向所述 V-SPR发送签约更新事件通知； 所述 V-PCRF从 V-SPR中获取所述漫游用户的拜访网络签约信息之后， 所述方法还包括：所述 V-PCRF接收所述 V-SPR发送的所述漫游用户的最新 拜访网络签约信息； 所述 V-PCRF在进行拜访地策略重决策的过程中发现需 要更新 PCC规则， 则向所述拜访网络的网关发送最新的 PCC规则。 较佳地，所述 V-SPR中保存的所述漫游用户的拜访网络签约信息所使用 的用户识别信息和所述漫游用户的归属网络签约信息所使用的用户识别信息 相同， 且所述用户识别信息由归属网络分配； 所述用户识别信息包括用户标 识和 /或用户号码， 所述用户标识包括 IMMSI, 所述用户号码包括 MSISDN 号码。
步骤 23、 所述 V-PCRF向所述拜访网络的网关发送所述 PCC规则。 上述策略和计费控制方法， 使得 V-PCRF能独立做拜访地策略和计费控 制。
另外， 本发明实施例又提供了一种在线计费方法， 应用于本地疏导漫游 场景下， 该实施例从 V-OCS角度进行描述， 该方法包括： 步骤 31、 拜访网络在线计费系统（ V-OCS )接收拜访网络的网关发送的 信用控制请求消息； 步骤 32、 所述 V-OCS根据所述信用控制请求消息确定漫游用户的 IP连 接接入网 （ IP-CAN )会话是直接釆用拜访网络信用控制， 则从 V-OCS本地 数据库或位于拜访网络的外部数据库中获取所述漫游用户的拜访网络签约信 息和相关联的账户信息， 并根据所述拜访网络签约信息和相关联的账户信息 直接生成拜访地信用控制决策； 其中，所述 V-OCS根据所述信用控制请求消息中包含的分组数据网络标 识的接入点名来确定漫游用户的会话是直接进行拜访网络信用控制还是向 H-OCS请求信用控制， 当确定为直接进行拜访网络信用控制时， V-OCS获取 漫游用户的拜访网络签约信息及关联的账户余额信息， 根据漫游用户的拜访 网络签约信息及关联的账户余额信息对所述信用控制请求消息中当前激活的 每个计费键进行批价、 余额检查和信用授权， 生成拜访地的信用控制决策， 当信用授权成功后更新漫游用户的账户余额信息， 从中核减掉已授权信用。 所述 V-OCS从本地数据库或位于拜访网络的外部数据库中获取的所述 漫游用户的拜访网络签约信息和所述漫游用户的归属网络签约信息所使用的 用户识别信息相同， 且所述用户识别信息由归属网络分配； 所述用户识别信 息包括用户标识和 /或用户号码， 所述用户标识包括国际移动用户识别码 ( IMSI ) , 所述用户号码包括移动台国际综合业务数字网号码（MSISDN )； 和 /或， 所述漫游用户的账户信息， 包含用于对漫游用户的 IP-CAN会话进行 拜访网络信用授权的余额信息。 步骤 33、 所述 V-OCS向所述拜访网络的网关发送所述信用控制决策。 需要说明的是，上述 V-OCS的信用控制可不依赖于 PCRF的策略和计费 控制而存在。 上述在线计费方法， 使得 V-OCS能独立做拜访地信用控制。
下面从 V-PCRF和 V-OCS交互的角度对本发明的技术方案进行描述。 实施例一 本实施例描述了在 IP-CAN会话建立过程中， V-PCRF和 V-OCS可以直 接根据漫游用户和 VPLMN运营商签订的数据服务， 对 IP-CAN会话实施拜 访地策略控制和在线计费， 该过程包括以下步骤：
5301、 位于拜访网络的网关 GW/PCEF收到 UE发送的建立 IP-CAN会 话请求消息， 该网关接受该请求消息并为 UE分配 IP地址；
5302、 GW/PCEF向拜访地 PCRF(V-PCRF)发送 IP-CAN会话建立指示消 息，消息中携带用户标识 IMSI、用户号码 MSISDN、网络接入标识符 （Network Access Identifier, NAI)以及分组数据网络（Packet Data Network, PDN)标识 接入点名 (Access Point Name, APN);
5303、 V-PCRF根据 IMSI或 MSISDN或 NAI判断用户为漫游用户， 并 且 V-PCRF预先配置了每个 APN下的 IP-CAN会话接入使用归属网络签约还 是拜访网络签约进行策略决策； 如果当前用户为漫游用户并且其接入的 APN 配置为使用归属网络签约进行策略决策，则 V-PCRF向 H-PCRF发送 IP-CAN 确定最终下发给 V-PCEF的 PCC规则。 如果此 APN配置为使用本地签约进 行策略决策， 则直接转入以下步骤；
5304、 如果 V-PCRF本地没有相关的用户签约信息， 就发送签约数据请 求给 V-SPR来获取， 同时向 V-SPR订阅用户在线时签约更新事件通知；
5305、如果 V-SPR有该用户的签约信息， 就在返回给 V-PCRF的确认消 息中包含该用户的签约信息， 否则在返回的确认消息中指出用户未知； 5306、 V-PCRF根据用户拜访网络签约， 拜访地网络策略， 承载属性等 进行授权和策略决定， 制定 PCC规则， 并决定对该 IP-CAN进行在线计费。 其中 PCC 规则中包含计费键 (Charging Key) , 可选的还包括业务标识符 (Service Identifier), 计费方法 (Charging Method) (这里为在线计费)和度量方法 (Metering Method) (如流量、 时长、 事件以及流量 /时长组合)；
5307、 V-PCRF向 V-PCEF发送 IP-CAN会话建立确认消息， 消息中携 带 PCC规则以及支持在线计费的拜访网络的 OCS标识， 如： 拜访网络的某 个主用 OCS地址和备用 OCS地址信息， 具体的定义方式此处不做限定；
5308、 由于釆用在线计费， 且至少有一个 PCC规则被激活， GW/PCEF 向 V-OCS发送信用控制请求消息为激活的 PCC规则的每个 Charging Key请 求信用， 消息中携带用户标识 IMSI、 用户号码 MSISDN、 网络接入标识符 (Network Access Identifier, NAI),分组数据网络 (Packet Data Network, PDN) 标识接入点名 （Access Point Name, APN)以及计费键（ Charging-Key ) ；
5309、 V-OCS根据信用控制请求消息中的 IMSI或 MSISDN或 NAI判断 用户为漫游用户， 并且 V-OCS预先配置了每个 APN下的 IP-CAN会话直接 使用拜访网络信用控制还是向 H-OCS请求归属网络信用控制；如果当前用户 为漫游用户并且其接入的 APN配置为向 H-OCS请求归属网络信用控制， 则 V-OCS向 H-OCS转发信用控制请求消息，并根据 H-OCS返回的信用控制决 策， 确定最终下发给 V-OCS的信用控制决策。 如果此 APN配置为直接使用 拜访网络信用控制， 则直接转入以下步骤：
V-OCS根据网络策略为每一个请求的 Charging Key进行信用 （ Credit ) 授权。 若 V-OCS发现用户 Credit已用完， 将拒绝授权。 此外， V-OCS将根 据网络策略为每一个请求的 Charging Key 订阅信用重授权触发 (Credit Re-authorization Triggers)以及最后授权单元 (Final Granted Unit)耗尽时的终结 动作 (Termination Action);
5310、 V-OCS向 GW/PCEF返回信用控制响应消息， 在消息中携带信用 控制决策；
S311、 GW/PCEF返回建立 IP-CAN会话响应消息， PCEF执行接收到的 信用控制决策。 如当信用控制决策中授权的 Credit用完时， PCEF发起信用 控制请求消息，请求 Credit;当信用控制决策中订阅的信用再授权触发（ Credit Re-authorization Triggers )条件满足时， PCEF发起信用控制请求消息， 请求 Credit; 当没有新的 Credit授权时， PCEF将执行终结动作。
实施例二 本实施例描述了在 IP-CAN会话维持过程中， 用户的拜访网络签约发生 变化， V-SPR通知 V-PCRF重新进行策略决策， 该过程包括以下步骤：
5401、 在 IP-CAN会话维持过程中， 如果 V-SPR检测到在线用户的拜访 网络签约发生了变化， 并且在 S303时， V-PCRF向 V-SPR订阅了在线用户 签约更新事件通知， 那么 V-SPR确定要向 V-PCRF发送用户签约更新通知；
5402、 V-SPR向 V-PCRF发送用户签约更新通知， 其中包含该用户最新 的拜访网络签约信息；
5403、 V-PCRF回复签约更新通知确认给 SPR; S404、 V-PCRF进行拜访地策略重决策；
S405、如果 V-PCRF重决策发现需要更新 PCC规则， V-PCRF向 V-PCEF 发送 IP-CAN会话重授权请求， 其中携带最新的 PCC规则；
S406、 V-PCEF安装最新的 PCC规则， 回复 IP-CAN会话重授权响应给 V-PCRF。
如图 5所示， 为本发明 V-PCRF实施例的结构示意图， 应用于本地疏导 漫游场景下， 该 V-PCRF包括接收模块 51、 处理模块 52和发送模块 53 , 其 中：
接收模块 51 , 设置为接收拜访网络的网关发送的 IP 连接接入网 ( IP-CAN )会话建立指示消息； 处理模块 52, 设置为根据所述 IP-CAN会话建立指示消息确定漫游用户 的 IP-CAN会话是釆用拜访网络签约进行策略决策， 则从拜访网络用户签约 数据库 （V-SPR ) 中获取所述漫游用户的拜访网络签约信息， 并根据该拜访 网络签约信息生成策略和计费控制 （PCC )规则； 发送模块 53 , 设置为向所述拜访网络的网关发送所述 PCC规则。 其中， 所述处理模块 52, 是设置为根据所述 IP-CAN会话建立指示消息 中包含的分组数据网络标识的接入点名来确定所述漫游用户的会话是釆用拜 访网络签约进行策略决策；或者，具体用于向所述 V-SPR发送签约数据请求， 以及接收所述 V-SPR根据所述签约数据请求获得的所述拜访网络签约信息。 另外， 所述发送模块 53 , 还设置为： 根据所述 IP-CAN会话建立指示消 息确定漫游用户的 IP-CAN会话是釆用拜访网络签约进行策略决策之后， 向 所述 V-SPR发送签约更新事件通知；所述处理模块，还用于：接收所述 V-SPR 发送的所述漫游用户的最新拜访网络签约信息； 以及， 在进行拜访地策略重 决策的过程中发现需要更新 PCC规则，则向所述拜访网络的网关发送最新的 PCC规则。 较佳地，所述 V-SPR中保存的所述漫游用户的拜访网络签约信息所使用 的用户识别信息和所述漫游用户的归属网络签约信息所使用的用户识别信息 相同， 且所述用户识别信息由归属网络分配； 所述用户识别信息包括用户标 识和 /或用户号码， 所述用户标识包括 IMSI, 所述用户号码包括 MSISDN号 码。 上述 V-PCRF , 不需要向 H-PCRF请求 PCC规则并直接下发或修改后下 发给拜访网络的网关， 而是从 V-SPR获得漫游用户的拜访网络签约信息， 并 生成 PCC规则下发给拜访网络的网关，从而使得拜访网络能够独立对漫游用 户和本网络签约的数据服务进行进行策略和计费控制。
如图 6所示，为本发明 V-OCS实施例的结构示意图，应用于本地疏导漫 游场景下， 该 V-OCS包括接收模块 61、 处理模块 62、发送模块 63和签约及 账户余额管理模块 64, 其中： 接收模块 61 , 设置为接收拜访网络的网关发送的信用控制请求消息； 处理模块 62, 设置为根据所述信用控制请求消息进行拜访地信用决策， 生成拜访地的信用控制决策； 发送模块 63 ,设置为向所述拜访网络的网关发送所述拜访地的信用控制 决策；
签约及账户余额管理模块 64, 设置为该 V-OCS本地保存及管理漫游用 户的拜访网络签约信息， 以及漫游用户的拜访网络账户信息； 或用于该 V-OCS 向位于拜访网络的外部数据库获取或更新所述拜访网络签约信息和 所述拜访网络账户信息； 所述漫游用户的所述拜访网络账户信息包含用于拜 访网络信用授权的余额信息。 其中， 所述处理模块 62, 是设置为： 根据所述信用控制请求消息中包含 的分组数据网络标识的接入点名来确定漫游用户的 IP-CAN会话是釆用拜访 网络签约进行信用决策， 向所述签约及账户余额管理模块获取漫游用户的拜 访网络签约信息及关联的账户及余额信息， 根据漫游用户的拜访网络签约信 息及关联的账户余额信息对所述信用控制请求消息中当前激活的每个计费键 进行批价、 余额检查和信用授权， 生成拜访地的信用控制决策， 当信用授权 成功后请求签约及账户余额管理模块核减已授权信用， 并更新漫游用户的账 户余额信息。 上述 V-OCS, 不需要向 H-OCS请求信用控制决策并下发给拜访网络的 网关， 而是将自身生成的信用控制决策下发给拜访网络的网关， 从而使得拜 访网络能够独立对漫游用户和本网络签约的数据服务进行在线计费。
与签约信息的处理方法相对应， 本发明实施例还提供了一种拜访网络， 如图 7所示， 该网络包括： 接收模块 71和保存模块 72, 其中： 接收模块 71 , 设置为接收漫游用户的拜访网络签约信息及账户信息， 且 该漫游用户的拜访网络签约信息及账户信息和归属网络签约信息及账户信息 使用相同的用户识别信息； 保存模块 72,设置为保存该漫游用户的所述拜访网络签约信息及所述账 户信息。 其中， 所述接收模块和保存模块可以位于 V-SPR, V-OCS或拜访网络的 其它网元中。 所述拜访网络签约信息及账户信息可分开存储或集中存储。 所述漫游用户的拜访网络签约信息包含漫游用户向拜访网络运营商订购 的本地疏导漫游数据服务。 所述漫游用户的拜访网络账户信息，包含可用于对漫游用户的 IP连接接 入网 （ IP-CAN )会话进行拜访网络信用授权的余额信息。 另外， 所述用户识别信息包括用户标识和 /或用户号码， 所述用户标识包 括国际移动用户识别码（IMSI ) , 所述用户号码包括移动台国际综合业务数 字网号码（MSISDN ) ； 且所述用户识别信息由归属网络分配。 该拜访网络使得用户不换卡不换号即可跨运营商购买漫游服务。 本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 上述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上实施例仅用以说明本发明的技术方案而非限制， 仅仅参照较佳实施 例对本发明进行了详细说明。 本领域的普通技术人员应当理解， 可以对本发 明的技术方案进行修改或者等同替换， 而不脱离本发明技术方案的精神和范 围， 均应涵盖在本发明的权利要求范围当中。
工业实用性 本发明实施例使得用户可以使用归属网络运营商分配的用户识别信息向 拜访网络运营商签订漫游数据服务， 并且， 拜访网络能够独立对本地疏导漫 游接入用户实施策略和计费控制及在线计费。

Claims

权 利 要 求 书
1、一种策略和计费控制方法，应用于本地疏导漫游场景下，该方法包括： 拜访网络策略控制与计费规则功能实体（ V-PCRF )接收拜访网络的网关 发送的 IP连接接入网 （IP-CAN )会话建立指示消息； 所述 V-PCRF 根据所述 IP-CAN会话建立指示消息确定漫游用户的
IP-CAN会话是釆用拜访网络签约进行策略决策， 则从拜访网络用户签约数 据库 （V-SPR ) 中获取所述漫游用户的拜访网络签约信息， 并根据该拜访网 络签约信息生成策略和计费控制 （PCC )规则；
2、 根据权利要求 1所述的方法， 其中： 所述 V-PCRF 根据所述 IP-CAN会话建立指示消息确定漫游用户的 IP-CAN会话是釆用拜访网络签约进行策略决策， 包括： 所述 V-PCRF根据所述 IP-CAN会话建立指示消息中包含的分组数据网 络标识的接入点名来确定所述漫游用户的会话是釆用拜访网络签约进行策略 决策。
3、 根据权利要求 1所述的方法， 其中： 所述 V-PCRF从 V-SPR中获取所述漫游用户的拜访网络签约信息，包括： 所述 V-PCRF向所述 V-SPR发送签约数据请求， 以及接收所述 V-SPR 根据所述签约数据请求获得的所述拜访网络签约信息。
4、 根据权利要求 3所述的方法， 其中： 所述 V-PCRF 根据所述 IP-CAN会话建立指示消息确定漫游用户的 IP-CAN会话是釆用拜访网络签约进行策略决策之后， 所述方法还包括： 所述 V-PCRF向所述 V-SPR发送签约更新事件通知； 所述 V-PCRF从 V-SPR中获取所述漫游用户的拜访网络签约信息之后， 所述方法还包括： 所述 V-PCRF接收所述 V-SPR发送的所述漫游用户的最新拜访网络签约 信息； 所述 V-PCRF在进行拜访地策略重决策的过程中发现需要更新 PCC规 则， 则向所述拜访网络的网关发送最新的 PCC规则。
5、 根据权利要求 1所述的方法， 其中： 所述 V-SPR 中保存的所述漫游用户的拜访网络签约信息所使用的用户 识别信息和所述漫游用户的归属网络签约信息所使用的用户识别信息相同， 且所述用户识别信息由归属网络分配； 所述用户识别信息包括用户标识和 / 或用户号码， 所述用户标识包括国际移动用户识别码（IMSI ) , 所述用户号 码包括移动台国际综合业务数字网号码（MSISDN ) 。
6、 一种在线计费方法， 应用于本地疏导漫游场景下， 该方法包括： 拜访网络在线计费功能实体（V-OCS )接收拜访网络的网关发送的信用 控制请求消息； 所述 V-OCS根据所述信用控制请求消息确定漫游用户的 IP连接接入网 ( IP-CAN )会话是直接釆用拜访网络信用控制， 则从 V-OCS本地数据库或 位于拜访网络的外部数据库中获取所述漫游用户的拜访网络签约信息和相关 联的账户信息， 并根据所述拜访网络签约信息和相关联的账户信息直接生成 拜访地信用控制决策； 所述 V-OCS向所述拜访网络的网关发送所述拜访地信用控制决策。
7、 根据权利要求 6所述的方法， 其中： 所述 V-OCS根据所述信用控制请求消息确定漫游用户的 IP-CAN会话是 直接釆用拜访网络信用控制， 包括： 所述 V-OCS根据所述信用控制请求消息中包含的分组数据网络标识的 接入点名来确定所述漫游用户的 IP-CAN会话是直接釆用拜访网络信用控 制。
8、 根据权利要求 6或 7所述的方法， 其中： 所述 v-ocs从本地数据库或位于拜访网络的外部数据库中获取的所述 漫游用户的拜访网络签约信息和所述漫游用户的归属网络签约信息所使用的 用户识别信息相同， 且所述用户识别信息由归属网络分配； 所述用户识别信 息包括用户标识和 /或用户号码， 所述用户标识包括国际移动用户识别码 ( IMSI ) , 所述用户号码包括移动台国际综合业务数字网号码（MSISDN )； 和 /或 所述漫游用户的账户信息， 包含用于对漫游用户的 IP-CAN会话进行拜 访网络信用授权的余额信息。
9、 一种签约信息的处理方法， 该方法包括： 拜访网络接收漫游用户的拜访网络签约信息及账户信息， 且该漫游用户 的拜访网络签约信息及账户信息和归属网络签约信息及账户信息使用相同的 用户识别信息； 所述拜访网络保存该漫游用户的所述拜访网络签约信息及所述账户信 息。
10、 根据权利要求 9所述的方法， 其中： 所述漫游用户的拜访网络签约信息包含所述漫游用户向拜访网络运营商 订购的本地疏导漫游数据服务， 所述漫游用户的拜访网络账户信息包含用于 对所述漫游用户的 IP连接接入网 （IP-CAN )会话进行拜访网络信用授权的 余额信息； 和 /或 所述用户识别信息包括用户标识和 /或用户号码，所述用户标识包括国际 移动用户识别码（IMSI ) , 所述用户号码包括移动台国际综合业务数字网号 码（MSISDN ) ； 且所述用户识别信息由归属网络分配。
11、 一种拜访网络设备， 该网络设备包括： 接收模块， 其设置为： 接收漫游用户的拜访网络签约信息及账户信息， 且该漫游用户的拜访网络签约信息及账户信息和归属网络签约信息及账户信 息使用相同的用户识别信息； 以及 保存模块， 其设置为： 保存该漫游用户的所述拜访网络签约信息及所述 账户信息。
12、 根据权利要求 11所述的网络设备， 其中： 所述漫游用户的拜访网络签约信息包含所述漫游用户向拜访网络运营商 订购的本地疏导漫游数据服务， 所述漫游用户的拜访网络账户信息包含用于 对所述漫游用户的 IP连接接入网 （IP-CAN )会话进行拜访网络信用授权的 余额信息； 和 /或 所述用户识别信息包括用户标识和 /或用户号码，所述用户标识包括国际 移动用户识别码（IMSI ) , 所述用户号码包括移动台国际综合业务数字网号 码（MSISDN ) ； 且所述用户识别信息由归属网络分配。
13、 一种拜访网络策略控制与计费规则功能实体（V-PCRF ) , 其应用于 本地疏导漫游场景下， 该 V-PCRF包括： 接收模块， 其设置为： 接收拜访网络的网关发送的 IP 连接接入网 ( IP-CAN )会话建立指示消息； 处理模块， 其设置为： 根据所述 IP-CAN会话建立指示消息确定漫游用 户的 IP-CAN会话是釆用拜访网络签约进行策略决策， 则从拜访网络用户签 约数据库（V-SPR ) 中获取所述漫游用户的拜访网络签约信息， 并根据该拜 访网络签约信息生成策略和计费控制 （ PCC )规则； 发送模块， 其设置为： 向所述拜访网络的网关发送所述 PCC规则。
14、 根据权利要求 13所述的 V-PCRF, 其中： 所述处理模块是设置为根据所述 IP-CAN会话建立指示消息中包含的分 组数据网络标识的接入点名来确定所述漫游用户的会话是釆用拜访网络签约 进行策略决策。
15、 根据权利要求 13所述的 V-PCRF, 其中： 所述处理模块是设置为向所述 V-SPR发送签约数据请求，以及接收所述 V-SPR根据所述签约数据请求获得的所述拜访网络签约信息。
16、 根据权利要求 15所述的 V-PCRF, 其中： 所述发送模块， 还设置为： 根据所述 IP-CAN会话建立指示消息确定漫 游用户的 IP-CAN 会话是釆用拜访网络签约进行策略决策之后， 向所述 V-SPR发送签约更新事件通知； 所述处理模块，还设置为： 接收所述 V-SPR发送的所述漫游用户的最新 拜访网络签约信息； 以及， 在进行拜访地策略重决策的过程中发现需要更新 PCC规则， 则向所述拜访网络的网关发送最新的 PCC规则。
17、 根据权利要求 13所述的 V-PCRF, 其在： 所述 V-SPR 中保存的所述漫游用户的拜访网络签约信息所使用的用户 识别信息和所述漫游用户的归属网络签约信息所使用的用户识别信息相同， 且所述用户识别信息由归属网络分配； 所述用户识别信息包括用户标识和 / 或用户号码， 所述用户标识包括国际移动用户识别码（IMSI ) , 所述用户号 码包括移动台国际综合业务数字网号码（MSISDN ) 。
18、 一种拜访网络在线计费系统（V-OCS ) , 应用于本地疏导漫游场景 下， 该 V-OCS包括： 接收模块， 其设置为接收拜访网络的网关发送的信用控制请求消息； 处理模块， 其设置为根据所述信用控制请求消息进行拜访地信用决策， 生成拜访地的信用控制决策； 发送模块， 其设置为向所述拜访网络的网关发送所述拜访地的信用控制 决策； 以及 签约及账户余额管理模块，其设置为该 V-OCS本地保存及管理漫游用户 的拜访网络签约信息， 以及漫游用户的拜访网络账户信息； 或用于该 V-OCS 向位于拜访网络的外部数据库获取或更新所述拜访网络签约信息和所述拜访 网络账户信息； 所述漫游用户的所述拜访网络账户信息包含用于拜访网络信 用授权的余额信息。
19、 根据权利要求 18所述的 V-OCS, 其中： 所述处理模块是设置为： 根据所述信用控制请求消息中包含的分组数据 网络标识的接入点名来确定漫游用户的 IP-CAN会话是釆用拜访网络签约进 行信用决策， 向所述签约及账户余额管理模块获取所述漫游用户的拜访网络 签约信息及关联的账户余额信息， 根据所述漫游用户的拜访网络签约信息及 关联的账户余额信息对所述信用控制请求消息中当前激活的每个计费键进行 批价、 余额检查和信用授权， 生成拜访地的信用控制决策。
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