WO2009092304A1 - Procédé et appareil de sélection d'entité fonctionnelle de politique et de règle de facturation - Google Patents

Procédé et appareil de sélection d'entité fonctionnelle de politique et de règle de facturation Download PDF

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Publication number
WO2009092304A1
WO2009092304A1 PCT/CN2009/070046 CN2009070046W WO2009092304A1 WO 2009092304 A1 WO2009092304 A1 WO 2009092304A1 CN 2009070046 W CN2009070046 W CN 2009070046W WO 2009092304 A1 WO2009092304 A1 WO 2009092304A1
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WIPO (PCT)
Prior art keywords
pcrf
information
dra
message
session
Prior art date
Application number
PCT/CN2009/070046
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English (en)
Chinese (zh)
Inventor
Yanglai Shuai
Peng Zhang
Wenruo Zhu
Yali Guo
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009092304A1 publication Critical patent/WO2009092304A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1453—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network
    • H04L12/1457—Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network using an account
    • 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
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for selecting a policy and a charging rule function entity.
  • Agent Diameter routing agent Management.
  • a network device such as GW (gateway) or AF (application server) establishes a session with the PCRF, GW and AF need to select the PCRF through DRA.
  • Embodiments of the present invention provide a method and apparatus for selecting a policy and a charging rule function entity, and perfecting an implementation mechanism for selecting a PCRF.
  • the routing process to the Diameter routing agent is also clarified.
  • a method for selecting a policy and a charging rule function entity includes:
  • Diameter routing agent DRA obtains the message used to establish the session
  • the DRA determines whether the selected policy and charging rule function entity PCRF is stored according to the message used to establish the session. If not, the PCRF is selected according to the preset local policy, otherwise, the stored PCRF is selected.
  • a method for message routing provided by the embodiment of the present invention includes: [13] Obtain packet data network PDN information;
  • an embodiment of the present invention provides a DRA, including:
  • the first module is configured to receive a message transmitted by the network device, where the message includes: a message transmitted by the network device during a session established with the PCRF in a non-roaming scenario or in a roaming scenario;
  • the second module is configured to: after the first module receives the message transmitted by the network device, determine whether the selected PCRF information is saved, if not, select the PCRF according to the preset local policy, otherwise, select the stored PCRF. .
  • FIG. 1 is a flow chart of a method for selecting a PCRF according to Embodiment 1 of the present invention
  • FIG. 2 is a flow chart of a method for selecting a PCRF according to Embodiment 2 of the present invention
  • FIG. 3 is a flow chart of a method for selecting a PCRF according to Embodiment 3 of the present invention.
  • FIG. 4 is a flow chart of a method for selecting a PCRF according to Embodiment 4 of the present invention.
  • FIG. 5 is a flowchart of a method for selecting a PCRF according to Embodiment 5 of the present invention.
  • FIG. 6 is a flow chart of a method for selecting a PCRF according to Embodiment 6 of the present invention.
  • FIG. 7 is a flowchart of a method for selecting a PCRF according to Embodiment 7 of the present invention.
  • Embodiment 8 is a flow chart of a method for selecting a PCRF according to Embodiment 8 of the present invention.
  • FIG. 9 is a schematic diagram of a Diameter routing agent according to an embodiment of the present invention.
  • the DRA with the selected PCRF responsibilities in the evolved network may not route the received message to the selected PCRF after routing the PCRF, and may also route the received message.
  • the DRA with the responsibility of selecting the PCRF can act as a Redirect server or an information query server, and can also act as a proxy proxy.
  • the DRA corresponding to the network device that needs to establish a session has the responsibility of selecting PCR F.
  • the DRA with the PCRF responsibilities can be only the home network DR.
  • A it is also possible to visit the network DRA and the home network DRA.
  • the network device in the embodiment of the present invention is a network device that needs to establish a session with the PCRF.
  • the network device may be a GW or an AF. Of course, it may also be another network device.
  • the GW may be a Serving GW (Serving Gateway), a PDN.
  • GW Packet Data Network Gateway
  • aGW of non-3GPP network access
  • the non-3GPP aGW may be ASN GW (Access Service Network)
  • non-3GPP network is CDMA2000 HRPD (High Rate Packet Data Network), non-3GPP aGW can be PDSN (Packet Data Serving)
  • Node packet data service node
  • aGW can be ePDG (evolved Packet Data
  • Embodiments of the present invention do not limit the specific manifestation of network devices.
  • the technical solution for selecting a PCRF provided by the embodiment of the present invention may be applied to a 3GPP system, or may be applied to a system that is not a 3GPP access. Moreover, it can be applied to Initial
  • the Serving GW and the PDN GW based on the IETF, the Serving GW, the PDN GW, and the AF need to establish a Session (session) with the PCRF, that is, Serving GW, PDN.
  • the PCRF that is, Serving GW, PDN.
  • the GW described below for the drawings includes: Serving GW and PDN GW.
  • the PDN GW and the AF need to establish a session with the PCRF, that is, the PDN.
  • the GW and AF need to interact with the DRA to obtain corresponding PCRF information.
  • the GW described below with respect to the drawing includes: PDN GW.
  • the G W needs to interact with the DRA to obtain the corresponding PCRF information.
  • the GW described below with respect to the drawing includes: Serving GW.
  • Gateway access gateway
  • PDN GW and AF need to establish a session with the PCRF, that is, non-3GPP aGW, PDN
  • the GW described below with respect to the drawing includes: a non-3GPP aGW, a PDN GW.
  • the non-3GPP aGW may be an ePDG, an ASN GW, a PDSN, or the like.
  • Interface roaming means that the terminal is roaming based on S2 + S8 interface.
  • Non-3GPP aGW, PDN GW, Serving GW and AF need to establish a session with the PCRF, that is, non-3GPP aGW, PDN.
  • the GW described below with respect to the drawing includes: a non-3GPP aGW, a Serving GW, and a PDN GW.
  • non-3GPP aGW aGW
  • the PP's aGW needs to reselect the PCRF to establish a new session.
  • the GW described below with respect to the drawing includes: a non-3GPP aGW.
  • the GW may change, that is, non-3GPP aGW and Serving The GW may all need to reselect the PCRF to establish a new session.
  • the GW described below with respect to the drawings includes: any one or two of the non-3GPP aGW, and the Serving GW.
  • step 1 GW/AF (GW or AF) determines that a session binding needs to be established with the corresponding PCRF, and the GW/AF sends a session establishment request to the DRA according to routing information (such as default routing configuration information). , to request to establish a session between GW/AF and PCRF.
  • the session establishment request message may carry terminal identification information, terminal address information, and APN (Access Point).
  • the GW/AF can also route the session establishment request message according to the NAI or other information.
  • Step 2 After receiving the session establishment request message, the DRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the predetermined local policy selects a PCRF (for example, the DRA selects a most suitable PCRF according to a load sharing strategy), and saves the PCRF selection information.
  • the format of the saved PCRF selection information may be: terminal identifier, terminal address, APN, and PCRF information. Correspondence relationship.
  • the PCR F information saved by the DRA may be one or more of PCRF IDs PCRF IP Address s PCRF FQDN.
  • Step 3 The DRA carries the selected PCRF information in the redirect notification message and returns it to the GW/AF.
  • Step 4 After receiving the redirected notification message returned by the DRA, the GW/AF obtains the PCRF information from the redirect notification message, and sends a session establishment request to the PCRF according to the PCRF information, that is, the GW/AF directly initiates the PCRF to the PCRF. Session establishment process.
  • Step 5 After receiving the session establishment request sent by the GW/AF, the PCRF returns a session establishment response message to the GW/AF.
  • the session establishment request in step 1 of FIG. 1 above may also be a query request message, that is, the process in FIG. 1 may also be
  • the GW/AF needs to establish a session with the PCRF, it sends a query request message to the DRA to obtain the corresponding PCRF information.
  • the DRA can use the content described in step 2 of Figure 1 above.
  • the PCRF is selected, and then the DRA carries the selected PCRF information in the query response message and returns it to the GW/AF. After that, the GW/AF obtains the PCRF information from the query response message, and sends a session establishment request to the PCRF according to the PCRF information. So, DRA acts as an information query server.
  • vDRA destination network DRA
  • hDRA both have PCRF selection responsibilities
  • vPCRF visitor network PCRF
  • hDRA have an interworking interface for vPCRF and hDRA Message transfer between.
  • step 1 GW/AF determines that a session binding needs to be established with an hPCRF (Home Network PCRF) in the home network, and the GW/AF goes to the visited network according to routing information (such as default routing configuration information).
  • the V DRA sends a session establishment request to request to establish a session between the GW/AF and the hPCRF.
  • the session establishment request message may carry the terminal identification information, the terminal address information, and the APN, etc., or the session establishment request message may carry the PDN.
  • GW/AF can also be routed based on NAI or other information.
  • Step 2 After receiving the session establishment request message, the vDRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the vPCRF information saved by vDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 3 The vDRA carries the selected vPCRF information in the redirect notification message and returns it to the GW/AF.
  • redirection notification message may also carry NAI information or home domain information.
  • Step 4 After receiving the redirected notification message returned by the vDRA, the GW/AF obtains the vPCRF information from the redirect notification message, and sends a session establishment request, that is, GW/AF, to the vPCRF according to the vPCRF information. Directly initiate a session establishment process to the vPCRF.
  • Step 5 After receiving the session establishment request, the vPCRF sends a session establishment request to the hDRA in the home network according to the routing information (such as the default route configuration information) to request to establish a session to the hPCRF.
  • the session establishment request message may carry the terminal identification information, the terminal address information, the APN, and the like; or the session establishment request message may carry the PDN.
  • the vPCRF can also be routed based on NAI or other information.
  • the process of the vPC RF sending a session establishment request to the hDRA may be: when the destination address of the session establishment request message received by the vPCRF points to the vPCRF (eg, the host name in the session establishment request message points to the vPCRF), and the domain name points to the visited network, then the vPCRF is based on the terminal.
  • the information such as the identifier acquires the home network information of the user, and the domain name in the destination address of the session establishment request message is modified to point to the home network, and then the vPCRF sends the session establishment request.
  • Step 6 After receiving the session establishment request message, the hDRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the hPCRF information saved by hDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 7 The hDRA carries the selected hPCRF information in the redirect notification message and returns it to the vPCRF.
  • Step 8 After receiving the redirection notification message returned by the hDRA, the vPCRF sends a session establishment request message to the hPCRF information according to the hPCRF information carried in the redirection notification message.
  • the process of sending a session establishment request message by the vPCRF may be: Modifying the host name in the destination address of the redirect notification message returned by the hDRA to point to the home network hPCRF.
  • Step 9 After receiving the session establishment request message, the hPCRF returns a session establishment response message to the vPCRF.
  • Step 10 The vPCRF forwards the received session establishment response message to the GW/AF. Thereby completing GW/ Session establishment process between AF and hPCRF.
  • the session establishment request in step 1, step 5 of FIG. 2 may also be a query request message, that is, the flow in FIG. 2 may also be:
  • the GW/AF actively sends a check to the vDRA.
  • the request message is sent to obtain the corresponding vPCRF information; after receiving the query request message, the vDRA may select the vPCRF by using the content described in step 2 of FIG. 2 above, and carry the selected vPCRF information in the query response message and return it to the request message.
  • the GW/AF obtains the vPCRF information from the query response message, and sends a session establishment request to the vPCRF according to the vPCR F information.
  • the vPCRF sends a query request message to the hDRA to obtain a corresponding
  • the hDRA may select the hPCRF by using the content described in step 6 of FIG. 2 above, and carry the selected hPCRF information in the query response message and return it to the vPCRF; the vPCRF receives the received message.
  • DRA acts as an information query server.
  • both vDRA and hDRA participate in the PCRF selection, that is, both vDRA and hDRA have PCRF selection responsibilities; there is an interworking interface between vDRA and hDRA to perform message transmission between vDRA and hDRA.
  • step 1 GW/AF determines that session binding needs to be established with the hPCRF in the home network, and GW/AF sends session establishment to the vDRA in the visited network according to routing information (such as default routing configuration information).
  • routing information such as default routing configuration information.
  • the session establishment request message may carry the terminal identification information, the terminal address information, and the APN, etc., or the session establishment request message may carry the PDN ID, the terminal address information, and the like.
  • GW/AF can also be routed based on NAI or other information.
  • Step 2 After receiving the session establishment request, the vDRA determines that the PCRF needs to establish a session in the home domain.
  • the shell IJvDRA forwards the session establishment request message to the hDRA.
  • Step 3 After receiving the session establishment request message, the hDRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the hPCRF information saved by hDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 4 The hDRA carries the selected hPCRF information in the redirect notification message and returns it to the vDRA.
  • Step 5 After receiving the redirect notification message, the vDRA according to the information carried in the redirect notification message (such as according to terminal identification information, terminal address information, APN, etc., or according to PDN)
  • the vPCRF information saved by vDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 6 The vDRA adds the selected vPCRF information to the redirect notification message it receives, and forwards the redirect notification message to the G W/AF.
  • Step 7 The GW/AF obtains the hPCRF information and the vPCRF information from the received redirection notification message, and sends a session establishment request message to the vPCRF according to the vPCRF information, where the session establishment request message carries the hPCRF information.
  • Embodiments of the present invention may extend a new AVP (Attribute-Value) in a session establishment request message.
  • Pairs are used to enable hPCRF information to be carried in the session establishment request message.
  • Step 8 The vPCRF obtains the hPCRF information from the AVP of the received session establishment request message, and sends the hPCRF information to the h
  • the PCRF forwards the session establishment request message.
  • Step 9 The hPCRF returns a session establishment response message to the vPCRF.
  • Step 10 The vPCRF forwards the session establishment response message to the GW/AF. Thereby completing GW/AF and hPCR
  • the session establishment request in step 1 and step 2 of FIG. 3 above may also be a query request message, that is, the process in FIG. 3 may also be: After the GW/AF needs to establish a session with the PCRF, the GW/AF actively sends a check to the vDRA. Request for request After receiving the query request message, the vDRA sends a query request message to the hDRA to obtain the corresponding hPCRF information; after receiving the query request message, the hDRA can use the above FIG. 3 The content of step 3 is selected as the hPCRF, and the selected hPCRF information is carried in the query response message and returned to the vDRA.
  • the vDRA can select the vPCRF by using the content described in step 5 of FIG. 3 above, and carry the hPCRF information and the selected vPCRF information.
  • the GW/AF obtains the vPCRF information from the query response message, and sends a session establishment request to the vPCRF according to the vPCRF information, where the session establishment request carries the hPCRF information;
  • the session establishment request message is forwarded to the hPCRF according to the hPCRF information in the session establishment request, and the subsequent steps are as described in steps 9 and 10 of FIG. So, DRA acts as an information query server.
  • vDRA Vehicle Network DRA
  • hDRA participates in PCRF selection, that is, vDRA does not have PCRF selection responsibility, hDRA has PCR F selection responsibility;
  • vPCRF and hDRA have an interworking interface, Perform message transmission between vPCRF and hDRA.
  • step 1 The GW/AF determines that a session binding needs to be established with the hPCRF in the home network, and the GW/A F sends a session establishment request message to the vPCRF.
  • the GW/AF may send a session establishment request message to the pre-configured vPCRF, and the GW/AF may also select a vPCRF according to the predetermined local policy and send a session establishment request message to the selected V PCRF.
  • Step 2 After receiving the session establishment request, the vPCRF sends a session establishment request to the hDRA in the home network according to the routing information (such as the default route configuration information) to request to establish a session to the hPCRF.
  • the session establishment request message may carry the terminal identification information, the terminal address information, the APN, and the like; or the session establishment request message may carry the PDN.
  • the vPCRF can also route the session establishment request message according to the NAI or other information.
  • the process of the vPCRF sending a session establishment request to the hDRA may be: when the destination address of the session establishment request message received by the vPCRF points to the vPCRF (eg, the host name in the session establishment request points to the V PCRF), and the domain name points to the visited network, the vPCRF is based on the terminal identifier.
  • the information acquires the home network information of the user, and modifies the domain name in the destination address of the session establishment request message to point to the home network, and then the vPCRF sends the session establishment request.
  • Step 3 After receiving the session establishment request message, the hDRA establishes the information carried in the request message according to the session establishment information, such as the terminal identification information, the terminal address information, the APN, or the like, or according to the PDN.
  • the hPCRF information saved by hDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 4 The hDRA carries the selected hPCRF information in the redirect notification message and returns it to the vPCRF.
  • Step 5 The vPCRF obtains the hPCRF information from the received redirection notification message, and sends a session establishment request message to the hPCRF according to the hPCRF information.
  • the process of the vPCRF sending the session establishment request message to the hPCRF may be:
  • the vPCRF modifies the host name in the destination address of the redirection notification message to hPCRF.
  • Step 6 After receiving the session establishment request message, the hPCRF returns a session establishment response message to the vPCRF.
  • Step 7 The vPCRF forwards the received session establishment response message to the GW/AF. Thereby the session establishment process between GW/AF and hPCRF is completed.
  • the session establishment request in step 2 of FIG. 4 may also be a query request message, that is, the process in FIG. 4 may also be: After the GW/AF needs to establish a session with the PCRF, the GW/AF sends a session establishment request message to the vPCRF; After receiving the session establishment request message, the vP CRF sends a query request message to the hDRA to obtain the corresponding hPCRF information. After receiving the query request message, the hDRA may select the hPCRF by using the content described in step 3 of FIG. 4 above. The selected hPCRF information is carried in the query response message and returned to the vPCRF; the subsequent steps are as described in steps 5, 6, and 7 of FIG. So, DRA acts as an information query server.
  • step 1 GW/AF (GW or AF) determines that a session binding needs to be established with the corresponding PCRF, and the GW/AF sends a session establishment request to the DRA according to routing information (such as default routing configuration information). , to request to establish a session between GW/AF and PCRF.
  • the session establishment request message may carry the terminal identifier. Information, terminal address information, APN, etc.; or the session establishment request message may carry PDN ID terminal address information and the like.
  • the GW/AF can also route the session establishment request message according to the NAI or other information.
  • Step 2 After receiving the session establishment request message, the DRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the predetermined local policy selects a PCRF (for example, the DRA selects a most suitable PCRF according to a load sharing policy), and saves the selected PCRF information, and the saved format may be: a terminal identifier, a terminal address, a correspondence between the APN and the PCRF information.
  • the PCRF information saved by the DRA may be one or more of PCR F ID, PCRF IP Address, and PCRF FQDN.
  • Step 3 The DRA forwards the session establishment request message to the selected PCRF.
  • Step 4 After receiving the session establishment request message, the PCRF establishes a session binding with the GW/AF, and goes to D.
  • the RA returns a session establishment response message.
  • Step 5 The DRA forwards the session establishment response message to the GW/AF.
  • vDRA destination network DRA
  • hDRA both have PCRF selection responsibilities
  • vPCRF Visit Network PCRF
  • hDRA have an interworking interface for vPCRF and hDRA The message is transmitted between.
  • step 1 GW/AF determines that session binding needs to be established with hPCRF (Home Network PCRF) in the home network, and GW/AF goes to the visited network according to routing information (such as default routing configuration information).
  • the V DRA sends a session establishment request to request to establish a session between the GW/AF and the hPCRF.
  • the session establishment request message may carry the terminal identification information, the terminal address information, and the APN, etc., or the session establishment request message may carry the PDN.
  • the GW/AF can also route the session establishment request message according to the NAI or other information.
  • Step 2 After receiving the session establishment request message, the vDRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN). ID, terminal address information, etc.) determine whether the vPCRF information in the visited network has been saved; if the selected vPCRF information is saved, the shell I directly obtains the saved vPCRF information; if the selected vPCRF is not saved Then, the vDRA selects a vPCRF according to the predetermined local policy (for example, the vDRA selects a most suitable vPCRF according to the load sharing policy), and saves the selected vPCRF information, and the saved format may be: terminal identifier, terminal address, APN, and vPCRF information. Correspondence.
  • the vPCRF information saved by vDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 3 The vDRA forwards the session establishment request message to the selected vPCRF.
  • Step 4 After receiving the session establishment request, the vPCRF sends a session establishment request to the hDRA in the home network according to the routing information (such as the default route configuration information) to request to establish a session between the hPCRFs.
  • the session establishment request message may carry the terminal identification information, the terminal address information, the APN, and the like; or the session establishment request message may carry the PDN.
  • the vPCRF can also route the session establishment request message based on the NAI or other information.
  • Step 5 After receiving the session establishment request message, the hDRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the hPCRF information saved by hDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 6 The hDRA forwards the session establishment request message to the selected hPCRF.
  • Step 7 After receiving the session establishment request message, the hPCRF establishes a session binding with the GW/AF, and returns a session establishment response message to the hDRA.
  • Step 8 The hDRA forwards the received session establishment response message to the vPCRF.
  • Step 9 The vPCRF forwards the received session establishment response message to the vDRA.
  • Step 10 The vDRA forwards the received session establishment response message to the GW/AF. Thereby the session establishment process between GW/AF and hPCRF is completed.
  • vDRA does not participate in PCRF selection
  • hDRA participates in PC RF selection, that is, vDRA does not have PCRF selection responsibility, hDRA has PCRF selection responsibility
  • vDRA and h DRA have an interworking interface for vDRA and hDRA Message transfer between.
  • step 1 GW/AF determines that session binding needs to be established with the hPCRF in the home network, and GW/AF sends session establishment to the vDRA in the visited network according to routing information (such as default routing configuration information).
  • routing information such as default routing configuration information.
  • the session establishment request message may carry the terminal identification information, the terminal address information, and the APN, etc., or the session establishment request message may carry the PDN ID, the terminal address information, and the like.
  • GW/AF can also be routed based on NAI or other information.
  • Step 2 After receiving the session establishment request, the vDRA determines that the PCRF needs to establish a session in the home domain.
  • the shell IJvDRA forwards the session establishment request message to the hDRA.
  • Step 3 After receiving the session establishment request message, the hDRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the hPCRF information saved by hDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 4 The hDRA forwards the session establishment request message to the selected hPCRF.
  • Step 5 The hPCRF returns a session establishment response message to the hDRA.
  • Step 6 hDRA returns a session establishment response message to vDRA.
  • Step 7 The vDRA forwards the session establishment response message to the GW/AF. Thereby the session establishment process between GW/AF and hPCRF is completed.
  • step 1 the GW/AF determines that a session binding needs to be established with the hPCRF in the home network, and the GW/A F sends a session establishment request message to the vPCRF.
  • the GW/AF may send a session establishment request message to the pre-configured vPCRF, and the GW/AF may also select a vPCRF according to the predetermined local policy and send a session establishment request message to the selected V PCRF.
  • Step 2 After receiving the session establishment request, the vPCRF sends a session establishment request to the hDRA in the home network according to the routing information (such as the default route configuration information) to request to establish a session to the hPCRF.
  • the session establishment request message may carry the terminal identification information, the terminal address information, the APN, and the like; or the session establishment request message may carry the PDN.
  • the vPCRF can also route the session establishment request message based on the NAI or other information.
  • Step 3 After receiving the session establishment request message, the hDRA establishes the information carried in the request message according to the session establishment information (such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN).
  • the session establishment information such as the terminal identification information, the terminal address information, the APN, etc., or according to the PDN.
  • the hPCRF information saved by hDRA can be PCRF ID, PCRF IP Address, PCRF.
  • One or more of the FQDNs are One or more of the FQDNs.
  • Step 4 The hDRA forwards the session establishment request message to the selected hPCRF.
  • Step 5 The hPCRF returns a session establishment response message to the hDRA.
  • Step 6 hDRA returns a session establishment response message to the vPCRF.
  • Step 7 The vPCRF forwards the session establishment response message to the GW/AF. Thereby the session establishment process between GW/AF and hPCRF is completed.
  • the route of the visited network DRA or the home network DRA may require PDN information (such as PDN).
  • the operating entity that performs routing to the DRA is different.
  • the entity can be GW/AF, vPCRF, or vDRA.
  • the Realm (domain) where the PCRF is located can be in accordance with the PDN.
  • the implementation process of obtaining PDN information may include the following process:
  • the operating entity performing the route to the DRA needs to obtain the corresponding PDN information from the APN before the Diameter route is performed.
  • the PDN information such as PDN
  • the method for obtaining the realm of the corresponding DRA according to the PDN information may be: extracting the Realm information directly from the PDN information; or: obtaining the Realm information according to the information configured on the network entity that needs to access the DRA, where the configuration is Information such as: PDN information and the mapping table of the Realm where the DRA is located.
  • Embodiments of the present invention do not limit the specific representation of network entities that are accessed by the DRA.
  • the operating entity performing the route to the DRA routes the Realm information of the obtained DRA as the Destination Realm.
  • FIG. 9 is a schematic diagram of a DRA, and the DRA in FIG. 9 may include: a first module 901, a second module 902, a third module 903, a fourth module 904, a fifth module 905, a sixth module 906, and a seventh Module 907.
  • the operation is performed by the first module 901, the second module 902, and the third module 903, or through the first module.
  • the operations of the second module 902, the third module 903, and the seventh module 907 can successfully select the P CRF or the home network PCRF.
  • the home network PCRF can be successfully selected by the operations of the fourth module 904, the fifth module 905, and the sixth module 906.
  • the first module 901 receives a message transmitted by the network device. That is, in a non-roaming scenario, the network device needs to establish a session with the PCRF, the network device sends a message to the DRA, and the first module 901 receives the message sent by the network device. In the roaming scenario, the network device needs to establish a session with the hPCRF, then the network The device sends a message to the V DRA, and the first module 901 receives the message sent by the network device.
  • the first module 901 receives
  • the message may be a session establishment request message for establishing a session, and the DR A where the first module 901 is located acts as a Redirect server or a Proxy proxy; the message received by the first module 901 may also be an information query request.
  • the second module 902 can determine whether the PCRF needs to be selected by using the information carried in the message received by the first module 901. For example, the second module 902 determines that the message received by the first module 901 is a session. After the request message or the information query request message is established, it is determined that the PCRF needs to be selected. If it is determined that the PCRF needs to be selected, the second module 902 determines the PCRF by using the PCRF information stored in the DRA, or the second module 902 selects the PCRF according to the predetermined policy. For example, the second module 902 does not determine in the PC RF information stored in the DRA.
  • the PCRF matches the information carried in the message received by the first module 901, the PCRF is selected by using a predetermined policy.
  • the PCRF information stored in the DRA can be the correspondence between the terminal and the PCRF.
  • the PCRF information stored in the DRA can be set by static configuration or dynamically configured.
  • the dynamic configuration mode such as the second module 902 in the DRA, allocates a PCRF according to a predetermined policy, and after the allocation is completed, the DRA stores the allocated PCRF information.
  • the second module 902 can determine whether the vPCRF needs to be selected by using the information carried in the message received by the first module 901. For example, the second module 902 determines that the message received by the first module 901 is a session establishment. After requesting the message or information query request message, it is determined that the vPCRF needs to be selected. If it is determined that the vPCRF needs to be selected, the second module 902 determines the vPCRF by using the vPCRF information stored in the vDRA, or the second module 902 selects the vPCRF according to the predetermined policy. For example, the second module 902 does not determine in the vPCRF information stored in the vDRA.
  • the vPCRF is selected by using a predetermined policy.
  • the vPCRF information stored by the DRA may be the correspondence relationship between the terminal and the vPCRF.
  • the vPCRF information stored in the vDRA can be set through static configuration or dynamically configured.
  • the dynamic configuration mode such as the second module 902 in the vDRA, allocates the vPCRF according to a predetermined policy, and after the allocation is completed, the vDRA stores the allocated vPCRF information.
  • the third module 903 may return a message carrying the PCRF information or the vPCRF information determined by the second module 902 to the network device, or may determine the second module 90 2
  • the outgoing PCRF or vPCRF forwards the message received by the first module 901.
  • the third module 903 may return to the network device to carry the PCRF message.
  • the redirection notification of the information or vPCRF information (such as step 3 in FIG. 1 and step 3 in FIG. 2) may also forward the session establishment request message to the determined PCRF or vPCRF (step 3 in FIG. 5, step 3 in FIG. 6).
  • the third module 903 may return an information query response message carrying the PCRF information or the vPCRF information to the network device.
  • the visited network sends a message to the DRA that is in the home network, that is, the hDRA, in the visited network, in the process of establishing a session between the network device and the hPCRF.
  • the PCRF sends a message to the hDRA, and then sends a message to the hDRA as the vDRA in the visited network.
  • the fourth module 904 in the hDRA receives the message sent by the visited network.
  • the message received by the fourth module 904 may be a message sent by the visited network forwarding network device, or may be a new message generated by the visited network after receiving the message sent by the network device, such as an information query request message.
  • the scenario in which the fourth module 904 receives the message sent by the visited network is as follows: step 5 in FIG. 2, step 2 in FIG. 2, step 2 in FIG. 2, step 4 in FIG. 6, step 2 in FIG. Step 2 and the like in Fig. 8.
  • the fifth module 905 determines whether it is necessary to select the hPCRF according to the information carried in the message, and determines that the hPCRF is determined after determining that the hPCRF needs to be selected.
  • the fifth module 905 determines that the hPCRF process may be: the fifth module 905 determines the hPCRF by using the PCRF information stored by the hDRA, or the fifth module 905 selects the hPCRF according to the predetermined policy. For example, the fifth module 905 determines the hPCRF stored in the hDRF. After there is no hPCRF matching the information carried in the message received by the fourth module 904, the hPCRF is selected by using a predetermined policy.
  • the hPCRF information stored in the hDRA can be the correspondence between the terminal and the PCRF.
  • the hPCRF information stored in hDRA can be set through static configuration or dynamic configuration.
  • the dynamic configuration mode such as the fifth module 905 in hDRA, allocates hPCRF according to a predetermined policy, and after the allocation is completed, hDRA stores the allocated hPCRF.
  • the sixth module 906 may return a message carrying the hPCRF information determined by the fifth module 905 to the visited network, or may also forward the hPCRF to the fifth module 905.
  • the fourth module 904 receives the message.
  • the message received by the fourth module 904 is a session establishment request message
  • the sixth module 906 may return a redirection notification carrying the hPCRF information to the visited network (step 4 of FIG. 2, step 4 of FIG. 3, step 4 of FIG. 4). )
  • the session establishment request message may also be forwarded to the determined hPCRF (step 6, step 4 of FIG. 6, step 4 of FIG. 7, step 4 of FIG. 8).
  • the sixth module 906 may return an information query response message carrying the hPCRF information to the visited network.
  • the seventh module 907 receives the message directly transmitted by the hDRA, or the seventh module 907. Receives messages transmitted by hDRA through vPCRF.
  • the second module 902 can determine whether the vPCRF needs to be selected by using the information carried in the message received by the seventh module 907.
  • the second module 902 determines the message sent by the hDRA according to the information carried in the message in step 5 of FIG. After redirecting the notification message, it is determined that the vPCRF needs to be selected. If the second module 902 determines that the vPCRF needs to be selected, the second module 902 determines the vPCRF by using the vPCRF information stored in the vDRA, or the second module 902 selects the vPCRF according to the predetermined policy. For example, the second module 902 determines the vPCRF stored in the vDRA.
  • the vPCRF is selected by using a predetermined policy.
  • the vPCRF information stored in the DRA can be the correspondence between the terminal and the vPCRF.
  • the vPCRF information stored in the vDRA can be set by static configuration or dynamically configured.
  • the dynamic configuration mode such as the second module 902 in the vDRA, allocates a vPCRF according to a predetermined policy, and after the allocation is completed, the vDRA stores the allocated vPCRF information.
  • the third module 903 can return a message carrying the vPCRF information determined by the second module 902 to the network device.
  • the message received by the seventh module 907 is a redirection notification (such as step 4 in FIG. 6 above)
  • the third module 903 may carry the vPCRF information determined by the second module 902 in the redirection notification message, and send the message to the network device. Return the redirect notification message (step 6 of Figure 3 above)

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  • Engineering & Computer Science (AREA)
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Abstract

L'invention concerne un procédé et un appareil destinés à sélectionner une entité fonctionnelle de politique et de règle de facturation (Policy and Charging Rule Function, PCRF). Le procédé comporte les étapes suivantes : l'agent d'acheminement diamétral DRA obtient le message utilisé pour établir la session ; ledit DRA détermine si la PCRF choisie est mémorisée en fonction du message utilisé pour établir la session ; si c'est le cas, la PCRF mémorisée est choisie ; dans le cas contraire, la PCRF est choisie selon la politique locale prédéfinie. L'invention clarifie le processus détaillé de mise en œuvre pour la sélection de la PCRF et complète le schéma de sélection de la PCRF.
PCT/CN2009/070046 2008-01-07 2009-01-06 Procédé et appareil de sélection d'entité fonctionnelle de politique et de règle de facturation WO2009092304A1 (fr)

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