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WO2014048191A1 - 一种选择vplmn的方法、系统及分组数据网络网关 - Google Patents

一种选择vplmn的方法、系统及分组数据网络网关 Download PDF

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Publication number
WO2014048191A1
WO2014048191A1 PCT/CN2013/082116 CN2013082116W WO2014048191A1 WO 2014048191 A1 WO2014048191 A1 WO 2014048191A1 CN 2013082116 W CN2013082116 W CN 2013082116W WO 2014048191 A1 WO2014048191 A1 WO 2014048191A1
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WIPO (PCT)
Prior art keywords
vplmn
pcrf
home network
aaa
network
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PCT/CN2013/082116
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English (en)
French (fr)
Inventor
周晓云
毕以峰
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ZTE Corp
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ZTE Corp
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403Architecture for metering, charging or billing
    • H04L12/1407Policy-and-charging control [PCC] architecture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing 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
    • H04W8/08Mobility data transfer
    • H04W8/12Mobility data transfer between location registers or mobility servers

Definitions

  • the present invention relates to a network selection technique, and more particularly to a method, system, and packet data network gateway for selecting a public land mobile network (VPLMN) in an evolved packet system (EPS, Evolved Packet System).
  • VPN public land mobile network
  • EPS evolved Packet System
  • FIG. 1 is a schematic diagram of the system architecture of the EPS.
  • the EPS network architecture of the non-roaming scenario by the evolved universal mobile communication system land E-UTRAN (Evolved Universal Terrestrial Radio Access Network), Mobility Management Entity (MME), S-GW (Serving Gateway), Packet Data Network Gateway (P-GW or The PDN GW (Packet Data Network Gateway) is composed of a Home Subscriber Server (HSS), a Policy and Charging Rules Function (PCRF), and an operator's IP service network.
  • the PCRF is the core of Policy and Charging Control (PCC) and is responsible for policy decision making and charging rules.
  • PCC Policy and Charging Control
  • the PCRF provides network control rules based on service data flows, including network traffic detection, Gating Control, Quality of Service (QoS) control, and traffic-based charging rules. Wait.
  • the PCRF sends its policy and charging rules to the Policy and Charging Enforcement Function (PCEF).
  • PCEF Policy and Charging Enforcement Function
  • the PCRF also needs to ensure that these rules are consistent with the user's subscription information.
  • the basis for formulating the policy and charging rules by the PCRF includes: obtaining information related to the service from the application function entity (AF, Application Function); and obtaining the user policy charging control sign from the user subscription database (SPR, Subscription Profile Repository) About information; Obtain information about the bearer-related network from the PCEF.
  • EPS supports interworking with non-3GPP systems. Interworking with non-3GPP systems is implemented through the S2a/S2b/S2c interface, which acts as an anchor between 3GPP and non-3GPP systems. As shown in FIG. 1, in the EPS system, the non-3GPP system is divided into a trusted non-3GPP IP access network and an untrusted non-3GPP IP access network.
  • Trusted non-3GPP IP access network and untrusted non-3GPP IP access network are authenticated by EPS insurance, authorization, and AAA, Authentication, Authorization, Accounting (Server); Trusted non-3GPP IP
  • the access network can be directly connected to the P-GW through the S2a interface; the untrusted non-3GPP IP access network needs to be connected to the P-GW through the ePLG (Evolved Packet Data Gateway), and can be accessed through the ePDG. GW;
  • the interface between the ePDG and the P-GW is S2b, and the user equipment (UE, User Equipment) and the ePDG use the Internet Protocol Security (IPSec, IP and Security) to encrypt the signaling and data.
  • the S2c provides user plane-related control and mobility support between the UE and the P-GW.
  • the supported mobility management protocol is the Moblie IPv6 support for dual stack Hosts and Router (DSMIPv6).
  • FIG. 2 is a schematic diagram of a home routing roaming architecture in a policy interworking scenario in which a UE accesses a 3GPP core network through a BBF access network (also referred to as a fixed broadband access network).
  • the BBF access network is considered to be an untrusted non-3GPP interface. Network access.
  • the BBF access network needs to communicate with the Home Public Land Mobile Network (HPLMN) by visiting the Public Land Mobile Network (VPLMN).
  • HPLMN Home Public Land Mobile Network
  • VPN Public Land Mobile Network
  • the above scenario in which the UE accesses the mobile core network through the BBF access network needs to guarantee the QoS on the entire transmission path of the data transmission (data will pass through the fixed network and the mobile network transmission).
  • the PCRF interacts with the Broadband Policy Control Framework (BPCF) in the BBF access to implement QoS guarantee.
  • BPCF Broadband Policy Control Framework
  • the BPCF is a policy control architecture in the BBF access network, and the resource request message of the PCRF performs resource admission control according to the network policy and subscription information of the BBF access. For example, when the UE accesses the 3GPP core network through a WLAN (Wireless Local Area Network), the total bandwidth requirement of all UEs accessing services through a WLAN access line does not exceed the bandwidth of the line, such as signing a contract. The bandwidth or the maximum physical bandwidth supported by the line, the PCRF needs to interact with the BPCF when performing QoS authorization, so that the BPCF performs resource admission control.
  • WLAN Wireless Local Area Network
  • the PCRF In order to implement the foregoing interaction, the PCRF must acquire the access location of the BBF access network currently accessed by the UE. After obtaining the broadband access location information, the PCRF first determines the BPCF that needs to be exchanged, and then sends the broadband access location information to the selected BPCF, and the BBF access network determines the specific access of the UE according to the broadband access location information. Lines to achieve resource admission control.
  • the architecture of FIG. 2 can also perform policy control on the offloaded service data of the UE, and the H-PCRF also needs to interact with the BPCF through the V-PCRF.
  • FIG. 3 is a schematic diagram of a home routing roaming architecture in a policy convergence scenario in which a UE accesses a 3GPP core network through a BBF access network.
  • the V-PCRF supports interaction with an IP edge route through a Gxd interface, and the H-PCRF needs to pass the V- The PCRF interacts with the BBF access network.
  • FIG 4 is a flow chart of the attachment of the UE to the 3GPP through the DSMIPv6 protocol.
  • the H-PCRF obtains the visited network identifier (VPLMN ID) of the VPLMN, which can be successfully implemented.
  • Step 101 The UE accesses the BBF access network, and performs 3GPP-based authentication.
  • the VPLMN's authentication, authorization, and accounting server agent (AAA Proxy) returns the VPLMN ID of the VPLMN where it is located to the BBF AAA;
  • the implementation of the 3GPP-based authentication is as follows:
  • the BBF AAA interacts with the AAA server of the home network through the AAA Proxy of the VPLMN to complete the EAP authentication. Further, the AAA server of the home network also interacts with the HSS.
  • Step 102 The IP Edge in the BBF access network allocates a local IP address to the UE.
  • Step 103 triggered by step 101 or step 102, the IP Edge notifies the BPCF that the UE accesses the 3GPP through the BBF access network, and the BPCF obtains the VPLMN ID of the VPLMN selected by the VPLMN when the UE access authentication is located;
  • the VPLMN ID of the VP Proxy of the VPLMN selected by the BPCF to obtain the UE access authentication is:
  • the BVP AAA notifies the IP Edge of the VPLMN ID of the VPLMN selected by the AAA Proxy of the VPLMN selected when the UE accesses the authentication, IP Edge
  • the BPCF notifies the VPLMN ID.
  • Step 104 When the BPCF supports the policy interworking with the H-PCRF, and the local policy indicates that the policy control of the NSWO can be provided to the UE, the BPCF determines the VPLMN selected when accessing the authentication according to the VPLMN ID, and passes the V- of the VPLMN.
  • the PCRF sends an IP-CAN session establishment indication message to the H-PCRF, and the H-PCRF returns an acknowledgement message through the V-PCRF;
  • the IP-CAN session establishment indication message carries a user identifier, a UE local IP address, and a NSWO-APN.
  • Step 105 The UE performs a bootstrapping process, where the UE acquires an IP address of the P-GW that is to access the PDN, performs communication with the AAA server to complete EAP authentication, and the P-GW is The UE allocates an IPv6 address or prefix as the home address (HoA) of the UE;
  • HoA home address
  • the AAA server also interacts with the HSS; the IP address of the P-GW that the UE acquires to access the PDN is: The point name (APN, Access Point Name) is searched by the DNS (Domain Name System) to obtain the IP address of the P-GW to which the PDN is to be accessed.
  • the point name APN, Access Point Name
  • DNS Domain Name System
  • the UE uses IKEv2 to establish a security association and uses EAP for authentication.
  • Step 106 The UE sends a DSMHV6 binding update message to the P-GW, and the P-GW establishes a binding context.
  • the binding update message carries CoA and HoA; in the binding message, the lifetime parameter is not zero.
  • Step 107 The PCEF in the P-GW sends an IP-Connectivity Access Network (IP-CAN, IP-Connectivity Access Network) session establishment indication message to the H-PCRF.
  • IP-CAN IP-Connectivity Access Network
  • IP-Connectivity Access Network IP-CAN, IP-Connectivity Access Network
  • Step 108 The H-PCRF performs QoS authorization according to the user identifier, the UE local IP address, and the NSWO-APN in the IP-CAN session establishment indication message, and returns an acknowledgement message to the PCEF in the P-GW.
  • Step 109 The P-GW returns a binding acknowledgement message to the UE.
  • Step 110 The H-PCRF sends a gateway control session trigger message to the BPCF through the V-PCRF, and the BPCF returns an acknowledgement message through the V-PCRF.
  • Step 111 The BPCF provides a QoS policy to the IP Edge.
  • the BBF AAA selects an AAA Proxy of the VPLMN.
  • the VCF selected by the BPCF and the AAA Proxy of the VPLMN selected by the BBF AAA are located in the same VPLMN.
  • the H-PCRF needs to initiate the establishment of the gateway control session, since the H-PCRF does not know the VPLMN where the AAA Proxy of the VPLMN selected by the UE access authentication is located, the V-PCRF and the BBF AAA selected by the H-PCRF cannot be guaranteed.
  • the AAA Proxy of the VPLMN is located in the same VPLMN, and when the NSWO and EPC-routed exist simultaneously, the prior art does not guarantee the BPCF selection.
  • V-PCRF is the same as the V-PCRF selected by H-PCRF. Summary of the invention
  • the embodiment of the present invention mainly provides a method, a system, and a P-GW of a VPLMN, and ensures that the V-PCRF selected by the H-PCRF and the AAA Proxy of the VPLMN selected by the BBF AAA are located in the same VPLMN.
  • a method for selecting a VPLMN includes: obtaining, by a P-GW of a home network, a VPLMN ID from an AAA server or a UE of the home network, and sending the VPLMN ID to the H-PCRF, The H-PCRF receives the VPLMN ID.
  • the method before the P-GW of the home network obtains the VPLMN ID from the AAA server or the UE of the home network, the method further includes:
  • the AAA Proxy of the VPLMN reports the VPLMN ID to the AAA server of the home network, or the BBF AAA sends the VPLMN ID to the UE.
  • the P-GW of the home network sends the VPLMN ID to the H-PCRF as:
  • the P-GW of the home network carries the VPLMN ID in an IP connection access network (IP-CAN) session establishment indication message or an IP-CAN session modification indication message sent to the H-PCRF.
  • IP-CAN IP connection access network
  • the method further includes: determining, by the H-PCRF, the VPLMN according to the VPLMN ID, and sending, by using the V-PCRF of the VPLMN, a gateway control session establishment trigger message initiated by the PCRF to the BPCF or the IP Edge.
  • the P-GW of the home network obtains the VPLMN ID from the UE as:
  • the UE sends the VPLMN ID by a self-starting process or a DSMIPv6 binding update message. To the P-GW of the home network.
  • a system for selecting a VPLMN is provided by the embodiment of the present invention, where the system includes: a P-GW of a home network, an AAA server of a home network, a UE, and an H-PCRF;
  • the P-GW of the home network is configured to obtain a VPLMN ID from an AAA server or a UE of the home network, and send the VPLMN ID to the H-PCRF;
  • the AAA server or the UE of the home network is configured to provide a VPLMN ID to the P-GW of the home network;
  • the H-PCRF is configured to receive the VPLMN ID sent by a P-GW of a home network.
  • the P-GW of the home network is configured to be sent to the H-PCRF.
  • the IP-CAN session establishment indication message or the IP-CAN session modification indication message carries the
  • the H-PCRF is further configured to determine a VPLMN according to the VPLMN ID, and send a gateway control session establishment trigger message initiated by the PCRF to the BPCF or the IP Edge by using the V-PCRF of the VPLMN.
  • the system further includes: VPLMN AAA Proxy and BBF AAA; wherein
  • the AAA Proxy of the VPLMN is configured to send the VPLMN ID to the AAA server of the home network, or return the VPLMN ID to the BBF AAA;
  • the BBF AAA is configured to send the VPLMN ID to the UE.
  • the UE is configured to send the VPLMN ID to the P-GW of the home network by using a self-starting process or a DSMIPv6 binding update message.
  • the P-GW of the home network includes: an ID acquisition interface and an ID transmission interface;
  • the ID obtaining interface is configured to acquire a VPLMN ID from an AAA server or a UE of the home network;
  • the ID sending interface is configured to send the VPLMN ID obtained by the ID obtaining interface to the H-PCRF 0.
  • the ID sending interface is configured to carry the VPLMN ID in an IP-CAN session establishment indication message or an IP-CAN session modification indication message sent to the H-PCRF.
  • a P-GW is provided in the embodiment of the present invention, where the P-GW includes: an ID obtaining interface and an ID sending interface;
  • the ID obtaining interface is configured to acquire a VPLMN ID from an AAA server or a UE of the home network;
  • the ID sending interface is configured to send the VPLMN ID obtained by the ID obtaining interface to the H-PCRF.
  • the embodiment of the present invention provides a method, a system, and a P-GW for selecting a VPLMN.
  • the P-GW of the home network obtains a VPLMN ID from an AAA server or a UE of the home network, and sends the VPLMN ID to the H-PCRF.
  • the H-PCRF receives the VPLMN ID and the BVP AAA that the H-PCRF selects, and the V-PCRF and the BBF AAA that are selected by the H-PCRF are selected by the H-PCRF to learn the VPLMN of the VPLMN AAA Proxy selected by the UE when the UE accesses the authentication.
  • the AAA Proxy of the selected VPLMN is located in the same VPLMN.
  • FIG. 1 is a schematic diagram of a system architecture of an EPS in the prior art
  • FIG. 2 is a schematic diagram of a home routing roaming architecture in a scenario of a policy interworking scenario in which a UE accesses a 3GPP core network through a BBF access network in the prior art;
  • FIG. 3 is a schematic diagram of a home routing roaming architecture in a policy convergence scenario in which a UE accesses a 3GPP core network through a BBF access network in the prior art;
  • FIG. 4 is a schematic flow chart of a method for implementing a VPLMN in the prior art
  • FIG. 5 is a schematic flowchart of a method for implementing a VPLMN according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a system for implementing a VPLMN according to an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a method for selecting a VPLMN according to an embodiment of the present invention
  • FIG. 8 is a schematic flowchart of a method for implementing a VPLMN according to Embodiment 2 of the present invention
  • FIG. 9 is a schematic flowchart of a method for selecting a VPLMN according to Embodiment 3 of the present invention; .
  • the P-GW of the home network acquires the VPLMN ID from the AAA server or the UE of the home network, and sends the VPLMN ID to the H-PCRF, where the H-PCRF receives the VPLMN ID.
  • the embodiments of the present invention implements a method for selecting a VPLMN. As shown in FIG. 5, the method includes the following steps:
  • Step 201 The P-GW of the home network obtains the VPLMN ID from the AAA server or the UE of the home network.
  • the AAA server or the UE of the home network sends the VPLMN ID of the VPLMN where the AAA Proxy of the VPLMN is located to the P-GW of the home network, where the home network P-GW receives the VPLMN ID;
  • the P-GW that sends the VPLMN ID of the VPLMN where the AAA Proxy of the VPLMN is located to the P-GW of the home network may be: the UE sends the VPLMN ID to the P-GW of the home network by using a Bootstraping process or a DSMIPv6 binding update message. .
  • the method further includes: in the process of the UE accessing the BBF access network for the 3GPP-based authentication, the AAA Proxy of the VPLMN reports the VPLMN ID to the AAA server of the home network, or the AAA Proxy of the VPLMN returns the VPLMN ID to the AAA proxy.
  • the BBF AAA sends the VPLMN ID to the UE.
  • Step 202 The P-GW of the home network sends the VPLMN ID to the H-PCRF, and the H-PCRF receives the VPLMN ID. Specifically, the P-GW of the home network carries the VPLMN ID in an IP-CAN session establishment indication message or an IP-CAN session modification indication message sent to the H-PCRF;
  • the method further includes: determining, by the H-PCRF, the VPLMN according to the VPLMN ID carried in the IP-CAN session establishment indication message or the IP-CAN session modification indication message, by using the V-PCRF of the VPLMN to the BPCF or the IP edge (Edge) Sending a gateway control session establishment trigger message initiated by the PCRF;
  • the BPCF or the IP Edge returns an acknowledgement message after receiving the gateway control session trigger message.
  • the embodiment of the present invention further provides a system for selecting a VPLMN.
  • the system includes: a P-GW 61 of a home network, an AAA server 62 of a home network, a UE 63, and an H-PCRF 64. ; among them,
  • the P-GW 61 of the home network is configured to acquire a VPLMN ID from the AAA server 62 or the UE 63 of the home network; and send the VPLMN ID to the H-PCRF 64;
  • the AAA server 62 or the UE 63 of the home network is configured to provide a VPLMN ID to the P-GW 61 of the home network;
  • the H-PCRF 64 is configured to receive the VPLMN sent by the P-GW 61 of the home network.
  • the gateway P-GW 61 of the home network is specifically configured to carry the VPLMN ID in an IP-CAN session establishment indication message or an IP-CAN session modification indication message sent to the H-PCRF 64;
  • the H-PCRF 64 is further configured to determine a VPLMN according to the VPLMN ID carried in the IP-CAN session establishment indication message or the IP-CAN session modification indication message, and send the PCRF to the BPCF or the IP Edge by using the V-PCRF of the VPLMN.
  • the gateway control session establishment triggering system further includes: VPLMN AAA Proxy 65 and BBF AAA 66; wherein The AAA Proxy 65 of the VPLMN is configured to report the VPLMN ID to the AAA server 62 of the home network, or return the VPLMN ID to the BBF AAA 66;
  • the BBF AAA 66 is configured to send the VPLMN ID to the UE 63.
  • the UE 63 is specifically configured to send the VPLMN ID to the P-GW 61 of the home network by using a Bootstraping process or a DSMIPv6 Binding Update message.
  • the P-GW 61 of the home network specifically includes: an ID obtaining interface 611 and an ID sending interface 612;
  • the ID obtaining interface 611 is configured to acquire a VPLMN ID from the AAA server 62 or the UE 63 of the home network;
  • the ID sending interface 612 is configured to send the VPLMN ID obtained by the ID obtaining interface 611 to the H-PCRF 64.
  • the ID sending interface 612 is specifically configured to carry the VPLMN ID in an IP-CAN session establishment indication message or an IP-CAN session modification indication message sent to the H-PCRF 64.
  • the embodiment of the present invention further provides a P-GW.
  • the P-GW 61 of the home network specifically includes: an ID obtaining interface 611 and an ID sending interface 612;
  • the ID obtaining interface 611 is configured to acquire a VPLMN ID from the AAA server 62 or the UE 63 of the home network;
  • the ID sending interface 612 is configured to send the VPLMN ID obtained by the ID obtaining interface 611 to the H-PCRF 64.
  • the ID sending interface 612 is specifically configured to carry the VPLMN ID in an IP-CAN session establishment indication message or an IP-CAN session modification indication message sent to the H-PCRF 64. Reason.
  • This embodiment is based on the architecture diagram of FIG. 2 or FIG. 3, and this embodiment implements the method of selecting the VPLMN.
  • the method as shown in Figure 7, includes the following steps:
  • Step 301 The UE accesses the BBF access network, and performs 3GPP-based authentication.
  • the AAA Proxy of the VPLMN returns the VPLMN ID of the VPLMN to the BBF AAA, and reports the VPLMN ID to the AAA server of the home network.
  • the AAA server of the network saves the VPLMN ID and/or sends the VPLMN ID to the HSS, and the HSS saves the VPLMN ID sent by the AAA server of the home network;
  • the implementation of the 3GPP-based authentication is as follows:
  • the BBF AAA interacts with the AAA server of the home network through the AAA Proxy of the VPLMN to complete the EAP authentication. Further, the AAA server of the home network also interacts with the HSS.
  • the AAA Proxy of the VPLMN sends the VPLMN ID to the AAA server of the home network, specifically: the AAA Proxy of the VPLMN passes the diameter EAP request of the SWd interface.
  • Diameter-EAP-Request ( Diameter-EAP-Request) message reports the VPLMN ID to the AAA service of the home network.
  • Step 302 The UE obtains a local IP address allocated by the BBF access network.
  • Step 303 triggered by step 301 or step 302, the IP Edge notifies the BPCF that the UE accesses the home network through the BBF access network, and the BPCF obtains the VPLMN ID of the VPLMN selected by the VPLMN when the UE access authentication is located;
  • Step 304 When the BPCF supports the policy interworking with the H-PCRF, and the local policy indicates that the policy control of the NSWO can be provided to the UE, the BPCF determines the VPLMN selected when accessing the authentication according to the VPLMN ID, and passes the V- of the VPLMN.
  • the PCRF sends an IP-CAN session establishment indication message to the H-PCRF, and the H-PCRF returns an acknowledgement message through the V-PCRF;
  • the IP-CAN session establishment indication message carries a user identifier, a UE local IP address, and a NSWO-APN
  • Step 305 The UE performs a Bootstraping process.
  • the AAA server of the home network sends the VPLMN ID to the P-GW.
  • the AAA server of the home network sends the VPLMN ID to the P-GW, where the AAA server of the home network sends the VPLMN ID to the P-GW through a Diameter-EAP-Answer message of the S6b interface;
  • the HSS sends the VPLMN ID to the home network through the Multimedia-Auth-Answer or Server-Assignment-Answer message of the SWx interface before the AAA server of the home network provides the VPLMN ID to the P-GW.
  • the AAA service is crying.
  • the UE acquires the IP address of the P-GW that is to access the PDN, performs communication with the AAA server of the home network through the P-GW to complete EAP authentication, and the P-GW allocates an IPv6 address to the UE. Or prefix as the HoA of the UE;
  • the AAA server of the home network also interacts with the HSS; the IP address of the P-GW that the UE needs to access the PDN is: the UE performs a DNS lookup according to the APN, and obtains the PDN to be accessed. IP address of the P-GW.
  • the UE uses IKEv2 to establish a security association and uses EAP for authentication.
  • Step 306 The UE sends a DSMHV6 binding update message to the P-GW, and the P-GW establishes a binding context.
  • the binding update message carries CoA and HoA; in the binding message, the lifetime parameter is not zero.
  • Step 307 The PCEF in the P-GW sends an IP-CAN session establishment indication message carrying the VPLMN ID to the H-PCRF.
  • Step 308 The H-PCRF performs QoS authorization according to the user identifier, the UE local IP address, and the NSWO-APN in the IP-CAN session establishment indication message, and returns an acknowledgement message to the PCEF in the P-GW.
  • Step 309 The P-GW returns a binding acknowledgement message to the UE.
  • Step 310 The H-PCRF determines a VPLMN according to the obtained VPLMN ID, and initiates a gateway control session establishment process by using the V-PCRF of the VPLMN.
  • the H-PCRF sends a PCRF-initiated gateway control session establishment trigger message to the BPCF through the V-PCRF of the VPLMN to provide the local IP address of the UE; and the BPCF receives the trigger message to the V-
  • the PCRF sends a gateway control session establishment message, and the V-PCRF returns an acknowledgement message, and initiates a gateway control session flow to the H-PCRF;
  • the H-PCRF sends a PCRF-initiated gateway control session establishment trigger message to the IP Edge through the V-PCRF of the VPLMN to provide the local IP address of the UE; the IP Edge receives the trigger message to the V-
  • the PCRF sends a gateway control session setup message, the V-PCRF returns an acknowledgement message, and initiates a gateway control session flow to the H-PCRF.
  • Step 311 The BPCF provides a QoS policy to the IP Edge.
  • the method may also be: After the P-GW receives the binding update message sent by the UE, the P-GW requests the VPLMN ID from the AAA server, and the AAA server of the home network provides the VPLMN ID to the P-GW.
  • the embodiment is based on the architecture diagram of FIG. 2 or FIG. 3, and the method for selecting a VPLMN is implemented in this embodiment. As shown in FIG. 8, the following steps are included:
  • Step 401 The UE accesses the 3GPP core network through the E-UTRAN, and establishes a PDN connection.
  • Step 402 After the UE finds that the BBF accesses the network, it determines to initiate the handover.
  • Step 403 The UE accesses the BBF access network, and performs 3GPP-based authentication.
  • the AAA Proxy of the VPLMN returns the VPLMN ID of the VPLMN to the BBF AAA, and reports the VPLMN ID to the AAA server of the home network.
  • the AAA server of the network saves the VPLMN ID and/or sends the VPLMN ID to the HSS, and the HSS saves the VPLMN ID sent by the AAA server of the home network;
  • the AAA Proxy of the VPLMN sends the VPLMN ID to the AAA server of the home network, specifically: the AAA Proxy of the VPLMN passes the diameter EAP request of the SWd interface.
  • Diameter-EAP-Request ( Diameter-EAP-Request) message reports the VPLMN ID to the AAA service of the home network.
  • Step 404 The UE obtains a local IP address allocated by the BBF access network.
  • Step 405 triggered by step 403 or step 404, the IP Edge notifies the BPCF that the UE accesses the home network through the BBF access network, and the BPCF obtains the VPLMN ID of the VPLMN selected by the VPLMN when the UE access authentication is located;
  • Step 406 When the BPCF supports the policy interworking with the H-PCRF, and the local policy indicates that the policy control of the NSCO can be provided to the UE, the BPCF determines the VPLMN selected when accessing the authentication according to the VPLMN ID, and passes the V- of the VPLMN.
  • the PCRF sends an IP-CAN session establishment indication message to the H-PCRF, and the H-PCRF returns an acknowledgement message through the V-PCRF;
  • the IP-CAN session establishment indication message carries a user identifier, a UE local IP address, and a NSWO-APN
  • Step 407 the UE performs a Bootstraping process, in the Bootstraping process, the AAA server of the home network sends the VPLMN ID to the P-GW;
  • the AAA server of the home network sends the VPLMN ID to the P-GW, where the AAA server of the home network sends the VPLMN ID to the P-GW through a Diameter-EAP-Answer message of the S6b interface;
  • the HSS sends the VPLMN ID to the home network through the Multimedia-Auth-Answer or Server-Assignment-Answer message of the SWx interface before the AAA server of the home network provides the VPLMN ID to the P-GW.
  • the AAA service is crying.
  • the UE acquires an IP address of a P-GW that is to access the PDN, and performs EAP authentication by communicating with the AAA server of the home network through the P-GW, and The P-GW allocates an IPv6 address or a prefix to the UE as the HoA of the UE.
  • the AAA server of the home network also interacts with the HSS; the UE acquires the IP of the P-GW to which the PDN is to be accessed.
  • the address is: the UE performs a DNS lookup according to the APN, and obtains an IP address of the P-GW that is to access the PDN.
  • the UE uses IKEv2 to establish a security association and uses EAP for authentication.
  • Step 408 The UE sends a DSMHV6 binding update message to the P-GW, and the P-GW establishes a binding context.
  • the binding update message carries CoA and HoA; in the binding message, the lifetime parameter is not zero.
  • Step 409 The PCEF in the P-GW sends an IP-CAN session modification indication message carrying the VPLMN ID to the H-PCRF.
  • Step 410 The H-PCRF performs QoS authorization according to the user identifier, the UE local IP address, and the NSWO-APN in the IP-CAN session modification indication message, and returns an acknowledgement message to the PCEF in the P-GW.
  • Step 411 The P-GW returns a binding acknowledgement message to the UE.
  • Step 412 The H-PCRF determines a VPLMN according to the obtained VPLMN ID, and initiates a gateway control session establishment process by using the V-PCRF of the VPLMN.
  • the H-PCRF sends a PCRF-initiated gateway control session establishment trigger message to the BPCF through the V-PCRF of the VPLMN to provide the local IP address of the UE; and the BPCF receives the trigger message to the V-
  • the PCRF sends a gateway control session establishment message, and the V-PCRF returns an acknowledgement message, and initiates a gateway control session flow to the H-PCRF;
  • the H-PCRF sends a PCRF-initiated gateway control session establishment trigger message to the IP Edge through the V-PCRF of the VPLMN to provide the local IP address of the UE; IP Edge Upon receiving the trigger message, the gateway control session establishment message is sent to the V-PCRF, and the V-PCRF returns an acknowledgement message, and initiates a gateway control session flow to the H-PCRF.
  • step 413 BPCF provides (508 policy) to 5 (186).
  • the method may also be: After the P-GW receives the binding update message sent by the UE, the P-GW requests the VPLMN ID from the AAA server, and the AAA server of the home network provides the VPLMN ID to the P-GW.
  • the embodiment is based on the architecture diagram of FIG. 2 or FIG. 3, and the method for selecting a VPLMN is implemented in this embodiment. As shown in FIG. 9, the method includes the following steps:
  • Step 501 The UE accesses the BBF access network, and performs 3GPP-based authentication.
  • the AAA Proxy of the VPLMN returns the VPLMN ID of the VPLMN to which the BBF AAA is located or the BBF AAA obtains the VPLMN ID according to the local configuration, and the BBF AAA will use the VPLMN.
  • the ID is returned to the UE;
  • the BBF AAA returns the VPLMN ID to the UE as follows:
  • the BBF AAA sends the VPLMN ID to the UE through an EAP Request/AKA'-Challenge or an EAP Success message.
  • Step 502 The UE obtains a local IP address allocated by the BBF access network.
  • Step 503 triggered by step 501 or step 502, the IP Edge notifies the BPCF that the UE accesses the 3GPP network through the BBF access network, and the BPCF obtains the VPLMN ID of the VPLMN selected by the VPLMN when the UE access authentication is located;
  • Step 504 When the BPCF supports the policy interworking with the H-PCRF, and the local policy indicates that the policy control of the NSCO can be provided to the UE, the BPCF determines the VPLMN selected when accessing the authentication according to the VPLMN ID, and passes the V- of the VPLMN.
  • the PCRF sends an IP-CAN session establishment indication message to the H-PCRF, and the H-PCRF returns an acknowledgement message through the V-PCRF;
  • the IP-CAN session establishment indication message carries a user identifier, a UE local IP address, and a NSWO-APN.
  • Step 505 the UE performs a Bootstraping process, in the Bootstraping process, the UE sends the VPLMN ID to the P-GW;
  • the UE sends the VPLMN ID to the P-GW, where the UE sends the VPLMN ID to the P-GW through the IKE_AUTH Request message, where the VPLMN ID can be used as a separate parameter or as part of the Network Access Identity (NAI).
  • NAI Network Access Identity
  • the UE acquires the IP address of the P-GW that is to access the PDN, performs communication with the AAA server of the home network through the P-GW to complete EAP authentication, and the P-GW allocates an IPv6 address to the UE. Or prefix as the HoA of the UE;
  • the AAA server of the home network also interacts with the HSS; the IP address of the P-GW that the UE needs to access the PDN is: the UE performs a DNS lookup according to the APN, and obtains the PDN to be accessed. IP address of the P-GW.
  • the UE uses IKEv2 to establish a security association and uses EAP for authentication.
  • Step 506 The UE sends a DSMHV6 binding update message to the P-GW, and the P-GW establishes a binding context.
  • the binding update message carries CoA and HoA; in the binding message, the lifetime parameter is not zero.
  • Step 507 The PCEF in the P-GW sends an IP-CAN session establishment indication message carrying the VPLMN ID to the H-PCRF.
  • Step 508 The H-PCRF performs QoS authorization according to the user identifier, the UE local IP address, and the NSWO-APN in the IP-CAN session establishment indication message, and returns an acknowledgement message to the PCEF in the P-GW.
  • Step 509 The P-GW returns a binding acknowledgement message to the UE.
  • Step 510 The H-PCRF determines the VPLMN according to the obtained VPLMN ID, by using the The V-PCRF of the VPLMN sends a PCRF-initiated gateway control session trigger message to the BPCF, and the BPCF returns an acknowledgement message through the V-PCRF;
  • Step 511 the BPCF provides a QoS policy to the IP Edge.
  • the foregoing method may further be: the UE does not provide the VPLMN ID to the P-GW in step 505, but carries the VPLMN ID through the DSMIPv6 binding update message in step 506.
  • the P-GW obtains the VPLMN ID from the AAA server or the UE of the home network, and sends the VPLMN ID to the H-PCRF of the home network, so that the H-PCRF can learn the VPLMN selected when the UE accesses the authentication.
  • the AAA Proxy is located in the VPLMN, ensuring that the H-PCRF selected V-PCRF is located in the same VPLMN as the AAA Proxy of the VPLMN selected by the BBF AAA.

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Abstract

本发明公开了一种选择拜访公共陆地移动网络(VPLMN)的方法,归属网络的分组数据网络网关(P-GW)从所述归属网络的认证、授权和计费(AAA)服务器或用户设备(UE)获取VPLMN标识(VPLMN ID)(201),归属网络的P-GW将所述VPLMN ID发送给归属网络的策略和计费规则功能实体(H-PCRF),所述H-PCRF接收所述VPLMN ID(202);本发明同时还公开了一种选择VPLMN的系统及P-GW,通过本发明的方案,能够使H-PCRF获知UE接入认证时所选择的VPLMN的AAA服务器代理(Proxy)位于的VPLMN,保证所述H-PCRF选择的V-PCRF与宽带论坛(BBF)AAA选择的VPLMN的AAA Proxy位于同一个VPLMN。

Description

一种选择 VPLMN的方法、 系统及分组数据网络网关 技术领域
本发明涉及网络选择技术, 尤其涉及演进的分组系统 (EPS , Evolved Packet System ) 中选择拜访公共陆地移动网络( VPLMN ) 的方法、 系统及 分组数据网络网关。 背景技术
图 1为 EPS的系统架构示意图, 如图 1所示, 在第三代合作伙伴计划 ( 3GPP, 3rd Generation Partnership Project ) 的 EPS中, 非漫游场景的 EPS 网络架构 ,由演进的通用移动通信系统陆地无线接入网( E-UTRAN, Evolved Universal Terrestrial Radio Access Network )、移动管理单元 ( MME, Mobility Management Entity )、 月良务网关 (S-GW, Serving Gateway ), 分组数据网络 网关( P-GW或者 PDN GW, Packet Data Network Gateway), 归属用户服务 器( HSS , Home Subscriber Server )、策略和计费规则功能实体( PCRF, Policy and Charging Rules Function )及运营商的 IP业务网等其他支撑节点组成。 PCRF是策略和计费控制 (PCC, Policy and Charging Control ) 的核心, 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 贝' J , 这些网络控制包括业务数据流的检测、 门控(Gating Control ), 服务质 量(QoS , Quality of Service )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( PCEF, Policy and Charging Enforcement Function )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: 从应用 功能实体(AF, Application Function )获取与业务相关的信息; 从用户签约 数据库(SPR, Subscription Profile Repository )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。
EPS支持与非 3GPP系统的互通。与非 3GPP系统的互通通过 S2a/ S2b/ S2c接口实现, P-GW作为 3GPP与非 3GPP系统间的锚点。 如图 1所示, 在 EPS的系统中, 非 3GPP系统被分为可信任非 3GPP IP接入网和不可信 任非 3GPP IP接入网。可信任非 3GPP IP接入网和不可信任非 3GPP IP接入 网通过 EPS 的险证、 授权和 i己贝长(AAA, Authentication, Authorization, Accounting )服务器(Server )进行认证; 可信任非 3GPP IP接入网可直接 通过 S2a接口与 P-GW连接; 不可信任非 3GPP IP接入网需经过演进的分 组数据网关( ePDG, Evolved Packet Data Gateway )与 P-GW相连,通过 ePDG 才能接入 P-GW; ePDG与 P-GW间的接口为 S2b, 并且用户设备( UE, User Equipment )和 ePDG之间采用 Internet协议安全性(IPSec, IP and Security )对信令和数据进行加密保护。 S2c提供了 UE与 P-GW之间的用 户面相关的控制和移动性支持, 其支持的移动性管理协议为支持双栈的移 动 IPv6 ( DSMIPv6, Moblie IPv6 support for dual stack Hosts and Router )。
目前很多运营商都很关注固网移动融合 ( FMC , Fixed Mobile
Convergence )技术, 并针对 3GPP和宽带论坛( BBF, Broadband Forum ) 互联互通技术进行了研究。
图 2为 UE通过 BBF接入网 (也称固定宽带接入网 )接入 3GPP核心 网的策略互通场景下的家乡路由漫游架构示意图, 图中 BBF接入网被认为 是不可信任的非 3GPP接入网。 BBF接入网需要通过拜访公共陆地移动网 络( VPLMN, Visited Public Land Mobile Network )与归属公共陆地移动网 络( HPLMN ) 实现互通。 UE通过 BBF接入网接入移动核心网的上述场景 需要对数据传输的整个传输路径(数据会经过固网和移动网传输)上的 QoS 进行保证。 当前技术中通过 PCRF 与 BBF接入中的宽带策略控制架构 ( BPCF, Broadband Policy Control Framework )进行交互, 实现 QoS保障。 BPCF为 BBF接入网中的策略控制架构,对 PCRF的资源请求消息根据 BBF 接入的网络策略、签约信息等进行资源接纳控制。例如当 UE通过无线局域 网络( WLAN, Wireless Local Area Network )接入 3GPP核心网时, 为了保 证通过一个 WLAN接入线路接入的所有 UE访问业务的总带宽需求不超过 该线路的带宽, 譬如签约带宽或该线路支持的最大物理带宽, PCRF在进行 QoS授权时需要与 BPCF进行交互, 以便 BPCF执行资源的接纳控制。 而 为了实现上述交互, PCRF必须获取 UE当前接入的 BBF接入网的接入位 置。 PCRF获取宽带接入位置信息后, 首先可以确定需要交互的 BPCF, 然 后再将宽带接入位置信息发送给所选择的 BPCF, BBF接入网再根据宽带接 入位置信息确定 UE接入的具体的线路,从而实现资源的接纳控制。 而对于 图 2所示的场景, 由于 HPLMN运营商与 BBF接入网的运营商之间没有商 业关系 (即没有签署漫游协议), 因此即使家乡策略和计费规则功能实体 ( H-PCRF, Home-Policy and Charging Rules Function )获取了 UE当前接入 的 BBF接入网的位置信息,也无法找到正确的 BPCF , 而必须通过 VPLMN 的拜访策略和计费规则功能实体 ( V -PCRF, Visited-Policy and Charging Rules Function )来与 BPCF进行交互。 此外, 图 2的架构还可以对 UE的分 流业务数据进行策略控制, H-PCRF同样需要通过 V-PCRF来与 BPCF交互。
图 3为 UE通过 BBF接入网接入 3GPP核心网的策略融合场景下的家 乡路由漫游架构示意图, V-PCRF通过 Gxd接口支持与 IP边界路由( IP Edge ) 交互, H-PCRF需要通过 V-PCRF与 BBF接入网交互。
图 4为 UE通过 DSMIPv6协议接入 3GPP时的附着流程图, 如图 2所 示, 利用本示例中的技术方案, H-PCRF获取了 VPLMN 的拜访网络标识 ( VPLMN ID ), 因此可以顺利实现与 V-PCRF的交互, 从而实现相关的接 纳控制, 具体包括以下步驟:
步驟 101 , UE接入 BBF接入网, 执行基于 3GPP ( 3GPP-based ) 的认 证, 在认证过程中, VPLMN的认证、授权和计费服务器代理(AAA Proxy ) 向 BBF AAA返回自身所在 VPLMN的 VPLMN ID;
所述执行基于 3GPP的认证为: BBF AAA通过 VPLMN的 AAA Proxy 与归属网络的 AAA服务器进行交互, 完成 EAP认证, 进一步的, 归属网 络的 AAA服务器还与 HSS进行交互。
步驟 102, BBF接入网中的 IP Edge为 UE分配本地 IP地址;
步驟 103, 受到步驟 101或步驟 102触发, IP Edge向 BPCF通知 UE 通过 BBF接入网接入 3GPP, BPCF获取 UE接入认证时所选择的 VPLMN 的 AAA Proxy位于 VPLMN的 VPLMN ID;
所述 BPCF获取 UE接入认证时所选择的 VPLMN的 AAA Proxy位于 VPLMN的 VPLMN ID为: BBF AAA将 UE接入认证时所选择的 VPLMN 的 AAA Proxy位于 VPLMN的 VPLMN ID通知 IP Edge, IP Edge向 BPCF 通知所述 VPLMN ID。
步驟 104, 当 BPCF支持与 H-PCRF的策略互通, 且本地策略指示能够 向 UE提供 NSWO的策略控制时, BPCF根据 VPLMN ID确定接入认证时 所选择的 VPLMN,并通过所述 VPLMN的 V-PCRF向 H-PCRF发送 IP-CAN 会话建立指示消息, H-PCRF通过 V-PCRF返回确认消息;
所述 IP-CAN会话建立指示消息中携带用户标识、 UE本地 IP地址、 NSWO-APN。
步驟 105, UE执行自启动 ( Bootstraping )过程, 其中, UE获取所要 接入 PDN的 P-GW的 IP地址,通过所述 P-GW与 AAA服务器进行通信完 成 EAP认证, 并且所述 P-GW为 UE分配一个 IPv6地址或前缀作为 UE的 家乡地址( HoA );
本步驟, 在 EAP认证过程中, 所述 AAA服务器还与 HSS交互; 所述 UE获取所要接入 PDN的 P-GW的 IP地址为: 所述 UE根据接入 点名称(APN, Access Point Name )进行或名系统 ( DNS, Domain Name System ) 查找, 获得所要接入 PDN的 P-GW的 IP地址。
所述 UE和所述 P-GW之间交互 DSMIPv6消息;
为了保护 UE和 P-GW之间的 DSMIPv6消息, UE使用 IKEv2建立安 全联盟, 并采用 EAP进行认证。
步驟 106, UE向 P-GW发送 DSMHV6绑定更新消息, P-GW建立绑定 上下文;
所述绑定更新消息中携带 CoA和 HoA; 所述绑定消息中, 生命期参数 不为零。
步驟 107 , P-GW中的 PCEF向 H-PCRF发送 IP连接访问网络( IP-CAN, IP-Connectivity Access Network )会话建立指示消息;
步驟 108, H-PCRF根据 IP-CAN会话建立指示消息中的用户标识、 UE 本地 IP地址、 NSWO-APN进行 QoS授权, 向 P-GW中的 PCEF返回确认 消息;
步驟 109 , P-GW向 UE返回绑定确认消息;
步驟 110, H-PCRF通过 V-PCRF向 BPCF发送网关控制会话触发消息, BPCF通过 V-PCRF返回确认消息。
步驟 111 , BPCF向 IP Edge提供 QoS策略。
在上述接入认证过程中 , BBF AAA选择了一个 VPLMN的 AAA Proxy, 在 BPCF需要建立 IP-CAN会话时, BPCF选择的 V-PCRF与 BBF AAA选 择的 VPLMN的 AAA Proxy位于同一个 VPLMN, 然而, 在 H-PCRF需要 发起建立网关控制会话时,由于 H-PCRF并不知道 UE接入认证时所选择的 VPLMN的 AAA Proxy位于的 VPLMN, 不能保证 H-PCRF选择的 V-PCRF 与 BBF AAA选择的 VPLMN的 AAA Proxy位于同一个 VPLMN, 并且, 当 NSWO 与 EPC-routed 同时存在时, 现有技术并不能保证 BPCF 选择的 V-PCRF与 H-PCRF选择的 V-PCRF是同一个。 发明内容
本发明实施例主要提供一种 VPLMN 的方法、 系统及 P-GW , 保证 H-PCRF选择的 V-PCRF与 BBF AAA选择的 VPLMN的 AAA Proxy位于同 一个 VPLMN。
本发明实施例的技术方案是这样实现的:
本发明实施例提供的一种选择 VPLMN的方法, 该方法包括: 归属网络的分 P-GW 从所述归属网络的 AAA 服务器或 UE 获取 VPLMN ID,并将所述 VPLMN ID发送给 H-PCRF,所述 H-PCRF接收所述 VPLMN ID。
上述方案中,所述归属网络的 P-GW从所述归属网络的 AAA服务器或 UE获取 VPLMN ID之前, 该方法还包括:
在 UE接入 BBF接入网进行基于 3GPP的认证过程中 , VPLMN的 AAA Proxy将 VPLMN ID上报给所述归属网络的 AAA服务器,或者, BBF AAA 将 VPLMN ID发送给 UE。
上述方案中,所述归属网络的 P-GW将所述 VPLMN ID发送给 H-PCRF 为:
所述归属网络的 P-GW 在向所述 H-PCRF发送的 IP连接访问网络 ( IP-CAN )会话建立指示消息或 IP-CAN 会话修改指示消息中携带所述 VPLMN ID。
上述方案中, 该方法还包括: 所述 H-PCRF根据所述 VPLMN ID确定 VPLMN, 通过所述 VPLMN的 V-PCRF向 BPCF或 IP Edge发送 PCRF发 起的网关控制会话建立触发消息。
上述方案中, 所述归属网络的 P-GW从 UE获取 VPLMN ID为:
UE通过自启动过程或 DSMIPv6绑定更新消息将所述 VPLMN ID发送 给所述归属网络的 P-GW。
本发明实施例提供的一种选择 VPLMN的系统, 该系统包括: 归属网 络的 P-GW、 归属网络的 AAA服务器、 UE、 H-PCRF; 其中,
所述归属网络的 P-GW, 配置为从所述归属网络的 AAA服务器或 UE 获取 VPLMN ID, 将所述 VPLMN ID发送给所述 H-PCRF;
所述归属网络的 AAA服务器或 UE, 配置为向所述归属网络的 P-GW 提供 VPLMN ID;
所述 H-PCRF, 配置为接收归属网络的 P-GW发送的所述 VPLMN ID。 上述方案中, 所述归属网络的 P-GW, 配置为在向 H-PCRF发送的
IP-CAN 会话建立指示消息或 IP-CAN 会话修改指示消息中携带所述
VPLMN ID。
上述方案中, 所述 H-PCRF, 还配置为根据所述 VPLMN ID 确定 VPLMN, 通过所述 VPLMN的 V-PCRF向 BPCF或 IP Edge发送 PCRF发 起的网关控制会话建立触发消息。
上述方案中 , 该系统还包括: VPLMN的 AAA Proxy和 BBF AAA; 其 中,
所述 VPLMN的 AAA Proxy, 配置为将 VPLMN ID上 4艮给归属网络的 AAA服务器, 或者, 将 VPLMN ID返回给 BBF AAA;
所述 BBF AAA, 配置为将 VPLMN ID发送给 UE。
上述方案中, 所述 UE, 配置为通过自启动过程或 DSMIPv6绑定更新 消息将所述 VPLMN ID发送给所述归属网络的 P-GW。
上述方案中,所述归属网络的 P-GW包括: ID获取接口、 ID发送接口; 其中,
所述 ID获取接口, 配置为从所述归属网络的 AAA服务器或 UE获取 VPLMN ID; 所述 ID发送接口, 配置为将 ID获取接口获取的 VPLMN ID发送给所 述 H-PCRF0
上述方案中, 所述 ID发送接口, 配置为在向 H-PCRF发送的 IP-CAN 会话建立指示消息或 IP-CAN会话修改指示消息中携带所述 VPLMN ID。
本发明实施例提供的一种 P-GW, 所述 P-GW包括: ID获取接口、 ID 发送接口; 其中,
所述 ID获取接口, 配置为从所述归属网络的 AAA服务器或 UE获取 VPLMN ID;
所述 ID发送接口, 配置为将 ID获取接口获取的 VPLMN ID发送给所 述 H-PCRF。
本发明实施例提供了一种选择 VPLMN的方法、 系统及 P-GW, 归属网 络的 P-GW从所述归属网络的 AAA服务器或 UE获取 VPLMN ID, 并将所 述 VPLMN ID发送给 H-PCRF, 所述 H-PCRF接收所述 VPLMN ID; 如此, 能够使 H-PCRF获知 UE接入认证时所选择的 VPLMN的 AAA Proxy位于 的 VPLMN,保证所述 H-PCRF选择的 V-PCRF与 BBF AAA选择的 VPLMN 的 AAA Proxy位于同一个 VPLMN。 附图说明
图 1为现有技术中 EPS的系统架构示意图;
图 2为现有技术中 UE通过 BBF接入网接入 3GPP核心网的策略互通 场景下的家乡路由漫游架构示意图;
图 3为现有技术中 UE通过 BBF接入网接入 3GPP核心网的策略融合 场景下的家乡路由漫游架构示意图;
图 4为现有技术中实现选择 VPLMN的方法的流程示意图;
图 5为本发明实施例实现选择 VPLMN的方法的流程示意图; 图 6为本发明实施例实现选择 VPLMN的系统的结构示意图; 图 7为本发明实施例一实现选择 VPLMN的方法的流程示意图; 图 8为本发明实施例二实现选择 VPLMN的方法的流程示意图; 图 9为本发明实施例三实现选择 VPLMN的方法的流程示意图。 具体实施方式
本发明实施例中,归属网络的 P-GW从所述归属网络的 AAA服务器或 UE获取 VPLMN ID , 并将所述 VPLMN ID发送给 H-PCRF, 所述 H-PCRF 接收所述 VPLMN ID。
下面通过附图及具体实施例对本发明实施例做进一步的详细说明。 本发明实施例实现一种选择 VPLMN的方法, 如图 5所示, 该方法包 括以下几个步驟:
步驟 201: 归属网络的 P-GW从所述归属网络的 AAA服务器或 UE获 取 VPLMN ID;
具体的 , 在 UE接入 BBF接入网进行基于 3GPP的认证过程中 , 归属 网络的 AAA服务器或 UE将 VPLMN的 AAA Proxy位于的 VPLMN的 VPLMN ID发送给归属网络的 P-GW, 所述归属网络的 P-GW接收所述 VPLMN ID;
所述 UE将 VPLMN的 AAA Proxy位于的 VPLMN的 VPLMN ID发送 给归属网络的 P-GW可以为: UE通过 Bootstraping过程或 DSMIPv6绑定更 新消息将所述 VPLMN ID发送给所述归属网络的 P-GW。
在本步驟之前, 还包括: 在 UE接入 BBF接入网进行基于 3GPP的认 证过程中 , VPLMN的 AAA Proxy将 VPLMN ID上报给归属网络的 AAA 服务器 , 或者, VPLMN的 AAA Proxy将 VPLMN ID返回给 BBF AAA, 所 述 BBF AAA将 VPLMN ID发送给 UE。
步驟 202: 归属网络的 P-GW将所述 VPLMN ID发送给 H-PCRF,所述 H-PCRF接收所述 VPLMN ID; 具体的,归属网络的 P-GW在向 H-PCRF发送的 IP-CAN会话建立指示 消息或 IP-CAN会话修改指示消息中携带所述 VPLMN ID;
上述方法还包括: 所述 H-PCRF根据 IP-CAN 会话建立指示消息或 IP-CAN会话修改指示消息中携带的 VPLMN ID确定 VPLMN, 通过所述 VPLMN的 V-PCRF向 BPCF或 IP边缘( Edge )发送 PCRF发起的网关控 制会话建立触发消息;
进一步的, 所述 BPCF或 IP Edge在收到所述网关控制会话触发消息之 后, 返回确认消息。
为了实现上述方法, 本发明实施例还提供一种选择 VPLMN的系统, 如图 6所示, 该系统包括: 归属网络的 P-GW 61、 归属网络的 AAA服务器 62、 UE 63、 H-PCRF 64; 其中,
所述归属网络的 P-GW 61 , 配置为从所述归属网络的 AAA服务器 62 或 UE 63获取 VPLMN ID; 将所述 VPLMN ID发送给 H-PCRF 64;
所述归属网络的 AAA服务器 62或 UE 63, 配置为向所述归属网络的 P-GW 61提供 VPLMN ID;
所述 H-PCRF 64,配置为接收归属网络的 P-GW 61发送的所述 VPLMN
ID;
所述归属网络的网关 P-GW 61 , 具体配置为在向 H-PCRF 64发送的 IP-CAN 会话建立指示消息或 IP-CAN 会话修改指示消息中携带所述 VPLMN ID;
所述 H-PCRF 64, 还配置为根据 IP-CAN会话建立指示消息或 IP-CAN 会话修改指示消息中携带的 VPLMN ID确定 VPLMN , 通过所述 VPLMN 的 V-PCRF向 BPCF或 IP Edge发送 PCRF发起的网关控制会话建立触发消 该系统还包括: VPLMN的 AAA Proxy 65和 BBF AAA 66; 其中, 所述 VPLMN的 AAA Proxy 65, 配置为将 VPLMN ID上报给归属网络 的 AAA服务器 62, 或者, 将 VPLMN ID返回给 BBF AAA 66;
所述 BBF AAA 66, 配置为将 VPLMN ID发送给 UE 63;
所述 UE 63, 具体配置为通过 Bootstraping过程或 DSMIPv6绑定更新 消息将所述 VPLMN ID发送给所述归属网络的 P-GW 61。
所述归属网络的 P-GW 61具体包括: ID获取接口 611、 ID发送接口 612; 其中,
所述 ID获取接口 611 , 配置为从所述归属网络的 AAA服务器 62或 UE 63获取 VPLMN ID;
所述 ID发送接口 612, 配置为将 ID获取接口 611获取的 VPLMN ID 发送给所述 H-PCRF 64。
所述 ID发送接口 612, 具体配置为在向 H-PCRF 64发送的 IP-CAN会 话建立指示消息或 IP-CAN会话修改指示消息中携带所述 VPLMN ID。
基于上述系统, 本发明实施例还提供一种 P-GW, 如图 6所示, 归属网 络的 P-GW 61具体包括: ID获取接口 611、 ID发送接口 612; 其中,
所述 ID获取接口 611 , 配置为从所述归属网络的 AAA服务器 62或 UE 63获取 VPLMN ID;
所述 ID发送接口 612, 配置为将 ID获取接口 611获取的 VPLMN ID 发送给所述 H-PCRF 64。
所述 ID发送接口 612, 具体配置为在向 H-PCRF 64发送的 IP-CAN会 话建立指示消息或 IP-CAN会话修改指示消息中携带所述 VPLMN ID。 理。
实施例一
本实施例基于图 2或图 3的架构图, 本实施例实现选择 VPLMN的方 法, 如图 7所示, 包括以下步驟:
步驟 301 , UE接入 BBF接入网, 执行基于 3GPP的认证, 在认证过程 中, VPLMN的 AAA Proxy向 BBF AAA返回自身所在 VPLMN的 VPLMN ID, 并将 VPLMN ID上报给归属网络的 AAA服务器, 归属网络的 AAA服 务器保存所述 VPLMN ID和 /或将所述 VPLMN ID发送至 HSS, 所述 HSS 保存归属网络的 AAA服务器发送的 VPLMN ID;
所述执行基于 3GPP的认证为: BBF AAA通过 VPLMN的 AAA Proxy 与归属网络的 AAA服务器进行交互, 完成 EAP认证, 进一步的, 归属网 络的 AAA服务器还与 HSS进行交互。
所述 VPLMN的 AAA Proxy将 VPLMN ID上才艮给归属网络的 AAA月良 务器, 具体为: VPLMN的 AAA Proxy通过 SWd接口的直径 EAP请求
( Diameter-EAP-Request )消息将 VPLMN ID上报给归属网络的 AAA服务 哭
步驟 302 , UE获得 BBF接入网分配的本地 IP地址;
步驟 303, 受到步驟 301或步驟 302触发, IP Edge向 BPCF通知 UE 通过 BBF接入网接入归属网络, BPCF 获取 UE接入认证时所选择的 VPLMN的 AAA Proxy位于 VPLMN的 VPLMN ID;
步驟 304, 当 BPCF支持与 H-PCRF的策略互通, 且本地策略指示能够 向 UE提供 NSWO的策略控制时, BPCF根据 VPLMN ID确定接入认证时 所选择的 VPLMN,并通过所述 VPLMN的 V-PCRF向 H-PCRF发送 IP-CAN 会话建立指示消息, H-PCRF通过 V-PCRF返回确认消息;
所述 IP-CAN会话建立指示消息中携带用户标识、 UE本地 IP地址、 NSWO-APN
步驟 305 , UE执行 Bootstraping过程, 在 Bootstraping过程中, 归属网 络的 AAA服务器将 VPLMN ID发送给 P-GW; 所述归属网络的 AAA服务器将 VPLMN ID发送给 P-GW, 具体为: 归 属 网 络的 AAA 服务器通过 S6b 接 口 的 直径 EAP 应 答 ( Diameter-EAP-Answer )消息将 VPLMN ID发送给 P-GW; 这里, 当 HSS 中保存有 VPLMN ID时,在归属网络的 AAA服务器向 P-GW提供 VPLMN ID 之前, 所述 HSS 通过 SWx 接口的 Multimedia- Auth-Answer 或 Server-Assignment-Answer消息将 VPLMN ID发送给归属网络的 AAA服务 哭.
所述 Bootstraping过程中 , UE获取所要接入 PDN的 P-GW的 IP地址, 通过所述 P-GW与归属网络的 AAA服务器进行通信完成 EAP认证, 并且 所述 P-GW为 UE分配一个 IPv6地址或前缀作为 UE的 HoA;
在 EAP认证过程中, 所述归属网络的 AAA服务器还与 HSS交互; 所述 UE获取所要接入 PDN的 P-GW的 IP地址为:所述 UE根据 APN 进行 DNS查找, 获得所要接入 PDN的 P-GW的 IP地址。
所述 UE和所述 P-GW之间交互 DSMIPv6消息;
为了保护 UE和 P-GW之间的 DSMIPv6消息, UE使用 IKEv2建立安 全联盟, 并采用 EAP进行认证。
步驟 306, UE向 P-GW发送 DSMHV6绑定更新消息, P-GW建立绑定 上下文;
所述绑定更新消息中携带 CoA和 HoA; 所述绑定消息中, 生命期参数 不为零。
步驟 307 , P-GW中的 PCEF向 H-PCRF发送携带 VPLMN ID的 IP-CAN 会话建立指示消息;
步驟 308, H-PCRF根据 IP-CAN会话建立指示消息中的用户标识、 UE 本地 IP地址、 NSWO-APN进行 QoS授权, 向 P-GW中的 PCEF返回确认 消息; 步驟 309 , P-GW向 UE返回绑定确认消息;
步驟 310, H-PCRF根据获得的 VPLMN ID确定 VPLMN, 通过所述 VPLMN的 V-PCRF发起网关控制会话建立流程;
具体的 , 图 2所示的架构中 H-PCRF通过 VPLMN的 V-PCRF向 BPCF 发送 PCRF发起的网关控制会话建立触发消息, 提供 UE的本地 IP地址; BPCF收到所述触发消息,向 V-PCRF发送网关控制会话建立消息, V-PCRF 返回确认消息, 并向 H-PCRF发起建立网关控制会话流程;
图 3所示的架构中, H-PCRF通过 VPLMN的 V-PCRF向 IP Edge发送 PCRF发起的网关控制会话建立触发消息,提供 UE的本地 IP地址; IP Edge 收到所述触发消息, 向 V-PCRF发送网关控制会话建立消息, V-PCRF返回 确认消息, 并向 H-PCRF发起建立网关控制会话流程。
步驟 311 , BPCF向 IP Edge提供 QoS策略。
上述方法还可以是: 当 P-GW收到 UE发送的绑定更新消息后, P-GW 向 AAA服务器请求 VPLMN ID, 归属网络的 AAA服务器向 P-GW提供 VPLMN ID。
实施例二
本实施例基于图 2或图 3的架构图, 本实施例实现选择 VPLMN的方 法, 如图 8所示, 包括以下步驟:
步驟 401 , UE通过 E-UTRAN接入 3GPP核心网 , 并建立 PDN连接; 步驟 402, UE发现 BBF接入网后, 决定发起切换;
步驟 403 , UE接入 BBF接入网, 执行基于 3GPP的认证, 在认证过程 中, VPLMN的 AAA Proxy向 BBF AAA返回自身所在 VPLMN的 VPLMN ID, 并将 VPLMN ID上报给归属网络的 AAA服务器, 归属网络的 AAA服 务器保存所述 VPLMN ID和 /或将所述 VPLMN ID发送至 HSS, 所述 HSS 保存归属网络的 AAA服务器发送的 VPLMN ID; 所述 VPLMN的 AAA Proxy将 VPLMN ID上才艮给归属网络的 AAA月良 务器, 具体为: VPLMN的 AAA Proxy通过 SWd接口的直径 EAP请求
( Diameter-EAP-Request )消息将 VPLMN ID上报给归属网络的 AAA服务 哭
步驟 404 , UE获得 BBF接入网分配的本地 IP地址;
步驟 405 , 受到步驟 403或步驟 404触发, IP Edge向 BPCF通知 UE 通过 BBF接入网接入归属网络, BPCF 获取 UE接入认证时所选择的 VPLMN的 AAA Proxy位于 VPLMN的 VPLMN ID;
步驟 406, 当 BPCF支持与 H-PCRF的策略互通, 且本地策略指示能够 向 UE提供 NSWO的策略控制时, BPCF根据 VPLMN ID确定接入认证时 所选择的 VPLMN,并通过所述 VPLMN的 V-PCRF向 H-PCRF发送 IP-CAN 会话建立指示消息, H-PCRF通过 V-PCRF返回确认消息;
所述 IP-CAN会话建立指示消息中携带用户标识、 UE本地 IP地址、 NSWO-APN
步驟 407, UE执行 Bootstraping过程, 在 Bootstraping过程中, 归属网 络的 AAA服务器将 VPLMN ID发送给 P-GW;
所述归属网络的 AAA服务器将 VPLMN ID发送给 P-GW, 具体为: 归 属 网 络的 AAA 服务器通过 S6b 接 口 的 直径 EAP 应 答 ( Diameter-EAP-Answer )消息将 VPLMN ID发送给 P-GW; 这里, 当 HSS 中保存有 VPLMN ID时,在归属网络的 AAA服务器向 P-GW提供 VPLMN ID 之前, 所述 HSS 通过 SWx 接口的 Multimedia- Auth-Answer 或 Server-Assignment-Answer消息将 VPLMN ID发送给归属网络的 AAA服务 哭.
所述 Bootstraping过程中 , UE获取所要接入 PDN的 P-GW的 IP地址, 通过所述 P-GW与归属网络的 AAA服务器进行通信完成 EAP认证, 并且 所述 P-GW为 UE分配一个 IPv6地址或前缀作为 UE的 HoA; 在 EAP认证过程中, 所述归属网络的 AAA服务器还与 HSS交互; 所述 UE获取所要接入 PDN的 P-GW的 IP地址为:所述 UE根据 APN 进行 DNS查找, 获得所要接入 PDN的 P-GW的 IP地址。
所述 UE和所述 P-GW之间交互 DSMIPv6消息;
为了保护 UE和 P-GW之间的 DSMIPv6消息, UE使用 IKEv2建立安 全联盟, 并采用 EAP进行认证。
步驟 408, UE向 P-GW发送 DSMHV6绑定更新消息, P-GW建立绑定 上下文;
所述绑定更新消息中携带 CoA和 HoA; 所述绑定消息中, 生命期参数 不为零。
步驟 409, P-GW中的 PCEF向 H-PCRF发送携带 VPLMN ID的 IP-CAN 会话修改指示消息;
步驟 410, H-PCRF根据 IP-CAN会话修改指示消息中的用户标识、 UE 本地 IP地址、 NSWO-APN进行 QoS授权, 向 P-GW中的 PCEF返回确认 消息;
步驟 411 , P-GW向 UE返回绑定确认消息;
步驟 412, H-PCRF根据获得的 VPLMN ID确定 VPLMN, 通过所述 VPLMN的 V-PCRF发起网关控制会话建立流程;
具体的 , 图 2所示的架构中 H-PCRF通过 VPLMN的 V-PCRF向 BPCF 发送 PCRF发起的网关控制会话建立触发消息, 提供 UE的本地 IP地址; BPCF收到所述触发消息,向 V-PCRF发送网关控制会话建立消息, V-PCRF 返回确认消息, 并向 H-PCRF发起建立网关控制会话流程;
图 3所示的架构中, H-PCRF通过 VPLMN的 V-PCRF向 IP Edge发送 PCRF发起的网关控制会话建立触发消息,提供 UE的本地 IP地址; IP Edge 收到所述触发消息, 向 V-PCRF发送网关控制会话建立消息, V-PCRF返回 确认消息, 并向 H-PCRF发起建立网关控制会话流程。
步驟 413, BPCF向 5(186提供(508策略。
上述方法还可以是: 当 P-GW收到 UE发送的绑定更新消息后, P-GW 向 AAA服务器请求 VPLMN ID, 归属网络的 AAA服务器向 P-GW提供 VPLMN ID。
实施例三
本实施例基于图 2或图 3的架构图, 本实施例实现选择 VPLMN的方 法, 如图 9所示, 包括以下步驟:
步驟 501 , UE接入 BBF接入网, 执行基于 3GPP的认证, 在认证过程 中, VPLMN的 AAA Proxy向 BBF AAA返回自身所在 VPLMN的 VPLMN ID或者 BBF AAA根据本地配置获得 VPLMN ID, BBF AAA将 VPLMN ID 返回给 UE;
所述 BBF AAA将 VPLMN ID返回给 UE具体为: BBF AAA通过 EAP Request/AKA'-Challenge或 EAP Success消息将 VPLMN ID发送给 UE。
步驟 502 , UE获得 BBF接入网分配的本地 IP地址;
步驟 503 , 受到步驟 501或步驟 502触发, IP Edge向 BPCF通知 UE 通过 BBF接入网接入 3GPP 网络, BPCF获取 UE接入认证时所选择的 VPLMN的 AAA Proxy位于 VPLMN的 VPLMN ID;
步驟 504, 当 BPCF支持与 H-PCRF的策略互通, 且本地策略指示能够 向 UE提供 NSWO的策略控制时, BPCF根据 VPLMN ID确定接入认证时 所选择的 VPLMN,并通过所述 VPLMN的 V-PCRF向 H-PCRF发送 IP-CAN 会话建立指示消息, H-PCRF通过 V-PCRF返回确认消息;
所述 IP-CAN会话建立指示消息中携带用户标识、 UE本地 IP地址、 NSWO-APN。 步驟 505 , UE执行 Bootstraping过程, 在 Bootstraping过程中, UE将 VPLMN ID发送给 P-GW;
所述 UE将 VPLMN ID发送给 P-GW具体为: UE通过 IKE_AUTH Request消息将 VPLMN ID发送给 P-GW, 这里, VPLMN ID可以作为单独 的参数或作为网络接入标识(NAI ) 的一部分;
所述 Bootstraping过程中, UE获取所要接入 PDN的 P-GW的 IP地址, 通过所述 P-GW与归属网络的 AAA服务器进行通信完成 EAP认证, 并且 所述 P-GW为 UE分配一个 IPv6地址或前缀作为 UE的 HoA;
在 EAP认证过程中, 所述归属网络的 AAA服务器还与 HSS交互; 所述 UE获取所要接入 PDN的 P-GW的 IP地址为:所述 UE根据 APN 进行 DNS查找, 获得所要接入 PDN的 P-GW的 IP地址。
所述 UE和所述 P-GW之间交互 DSMIPv6消息;
为了保护 UE和 P-GW之间的 DSMIPv6消息, UE使用 IKEv2建立安 全联盟, 并采用 EAP进行认证。
步驟 506, UE向 P-GW发送 DSMHV6绑定更新消息, P-GW建立绑定 上下文;
所述绑定更新消息中携带 CoA和 HoA; 所述绑定消息中, 生命期参数 不为零。
步驟 507, P-GW中的 PCEF向 H-PCRF发送携带 VPLMN ID的 IP-CAN 会话建立指示消息;
步驟 508, H-PCRF根据 IP-CAN会话建立指示消息中的用户标识、 UE 本地 IP地址、 NSWO-APN进行 QoS授权, 向 P-GW中的 PCEF返回确认 消息;
步驟 509, P-GW向 UE返回绑定确认消息;
步驟 510, H-PCRF根据获得的 VPLMN ID确定 VPLMN, 通过所述 VPLMN的 V-PCRF向 BPCF发送 PCRF发起的网关控制会话触发消息, BPCF通过 V-PCRF返回确认消息;
步驟 511 , BPCF向 IP Edge提供 QoS策略。
上述方法还可以是: UE不在步驟 505中向 P-GW提供 VPLMN ID, 而 是通过步驟 506中的 DSMIPv6绑定更新消息携带 VPLMN ID。
对于 UE通过 E-UTRAN接入 3GPP核心网, 并建立 PDN连接, 之后 UE发现 BBF接入网发起切换的流程中 , H-PCRF获取 VPLMN ID的过程 与此类似, 不再赘述。 工业实用性
综上所述, P-GW从归属网络的 AAA服务器或 UE获取 VPLMN ID , 并将所述 VPLMN ID发送给归属网络的 H-PCRF, 能够使 H-PCRF获知 UE 接入认证时所选择的 VPLMN 的 AAA Proxy位于的 VPLMN, 保证所述 H-PCRF选择的 V-PCRF与 BBF AAA选择的 VPLMN的 AAA Proxy位于同 一个 VPLMN。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种选择拜访公共陆地移动网络(VPLMN )的方法, 该方法包括: 归属网络的分组数据网络网关(P-GW )从所述归属网络的认证、 授权 和计费( AAA )服务器或用户设备 ( UE )获取拜访网络标识( VPLMN ID ), 并将所述 VPLMN ID 发送给归属网络的策略和计费规则功能实体 ( H-PCRF ), 所述 H-PCRF接收所述 VPLMN ID。
2、 根据权利要求 1所述的方法, 其中, 所述归属网络的 P-GW从所述 归属网络的 AAA服务器或 UE获取 VPLMN ID之前, 该方法还包括:
在 UE接入宽带论坛 (BBF )接入网进行基于第三代合作伙伴计划 ( 3GPP ) 的认证过程中, VPLMN的认证、 授权和计费服务器代理(AAA Proxy )将 VPLMN ID上报给所述归属网络的 AAA服务器,或者, BBF AAA 将 VPLMN ID发送给 UE。
3、 根据权利要求 2所述的方法, 其中, 所述归属网络的 P-GW将所述 VPLMN ID发送给 H-PCRF为:
所述归属网络的 P-GW 在向所述 H-PCRF发送的 IP 连接访问网络 ( IP-CAN )会话建立指示消息或 IP-CAN 会话修改指示消息中携带所述 VPLMN ID。
4、 根据权利要求 1所述的方法, 其中, 该方法还包括: 所述 H-PCRF 根据所述 VPLMN ID确定 VPLMN, 通过所述 VPLMN的拜访策略和计费 规则功能实体( V-PCRF )向宽带策略控制架构( BPCF )或 IP边界路由( IP Edge )发送策略和计费规则功能实体(PCRF )发起的网关控制会话建立触 发消息。
5、 根据权利要求 1所述的方法, 其中, 所述归属网络的 P-GW从 UE 获取 VPLMN ID为:
UE通过自启动过程或 DSMIPv6绑定更新消息将所述 VPLMN ID发送 给所述归属网络的 P-GW。
6、 一种选择 VPLMN的系统, 该系统包括: 归属网络的 P-GW、 归属 网络的 AAA服务器、 UE、 H-PCRF; 其中,
所述归属网络的 P-GW, 配置为从所述归属网络的 AAA服务器或 UE 获取 VPLMN ID, 将所述 VPLMN ID发送给所述 H-PCRF;
所述归属网络的 AAA服务器或 UE, 配置为向所述归属网络的 P-GW 提供 VPLMN ID;
所述 H-PCRF, 配置为接收归属网络的 P-GW发送的所述 VPLMN ID。
7、 根据权利要求 6所述的系统, 其中, 所述归属网络的 P-GW, 配置 为在向 H-PCRF发送的 IP-CAN会话建立指示消息或 IP-CAN会话修改指示 消息中携带所述 VPLMN ID。
8、 根据权利要求 6所述的系统, 其中, 所述 H-PCRF, 还配置为根据 所述 VPLMN ID确定 VPLMN, 通过所述 VPLMN的 V-PCRF向 BPCF或 IP Edge发送 PCRF发起的网关控制会话建立触发消息。
9、根据权利要求 6所述的系统,其中,该系统还包括: VPLMN的 AAA Proxy和 BBF AAA; 其中,
所述 VPLMN的 AAA Proxy, 配置为将 VPLMN ID上 4艮给归属网络的 AAA服务器, 或者, 将 VPLMN ID返回给 BBF AAA;
所述 BBF AAA, 配置为将 VPLMN ID发送给 UE。
10、 根据权利要求 6所述的系统, 其中, 所述 UE, 配置为通过自启动 过程或 DSMIPv6绑定更新消息将所述 VPLMN ID发送给所述归属网络的
11、 根据权利要求 6所述的系统, 其中, 所述归属网络的 P-GW包括: ID获取接口、 ID发送接口; 其中,
所述 ID获取接口, 配置为从所述归属网络的 AAA服务器或 UE获取 VPLMN ID;
所述 ID发送接口, 配置为将 ID获取接口获取的 VPLMN ID发送给所 述 H-PCRF。
12、 根据权利要求 11所述的系统, 其中, 所述 ID发送接口, 配置为 在向 H-PCRF发送的 IP-CAN会话建立指示消息或 IP-CAN会话修改指示消 息中携带所述 VPLMN ID。
13、 一种 P-GW, 包括: ID获取接口、 ID发送接口; 其中, 所述 ID获取接口, 配置为从所述归属网络的 AAA服务器或 UE获取 VPLMN ID;
所述 ID发送接口, 配置为将 ID获取接口获取的 VPLMN ID发送给所 述 H-PCRF。
14、 根据权利要求 13所述的 P-GW, 其中, 所述 ID发送接口, 配置为 在向 H-PCRF发送的 IP-CAN会话建立指示消息或 IP-CAN会话修改指示消 息中携带所述 VPLMN ID。
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