WO2012075779A1 - 一种保证移动节点服务质量的方法及系统 - Google Patents

一种保证移动节点服务质量的方法及系统 Download PDF

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Publication number
WO2012075779A1
WO2012075779A1 PCT/CN2011/074355 CN2011074355W WO2012075779A1 WO 2012075779 A1 WO2012075779 A1 WO 2012075779A1 CN 2011074355 W CN2011074355 W CN 2011074355W WO 2012075779 A1 WO2012075779 A1 WO 2012075779A1
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Prior art keywords
mobile node
quality
access gateway
service
gateway router
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PCT/CN2011/074355
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English (en)
French (fr)
Inventor
孙默
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中兴通讯股份有限公司
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Publication of WO2012075779A1 publication Critical patent/WO2012075779A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/302Route determination based on requested QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and system for guaranteeing a mobile node quality of service.
  • IP addresses in the Transmission Control Protocol/Internet Protocol which is widely used in the Internet, have dual functions, and serve as a communication layer host network interface of the network layer in the network topology.
  • the location identifier which is also the identity of the transport layer host network interface.
  • TCP/IP did not consider the case of host mobility at the beginning of design. When the situation of host mobility becomes more and more common, the semantic overload defect of such IP address becomes more and more obvious.
  • IP address of the host changes, not only the route changes, but also the identity of the communication terminal host changes. This will cause the routing load to become heavier and heavy, and the change of the host identity will also cause the application and connection to be interrupted.
  • the purpose of identification and location separation is to solve the problem of semantic overload and severe routing load of IP addresses, and to separate the dual functions of IP addresses, thereby realizing dynamic redistribution and mitigation of mobility, multiple townships, and IP addresses. Support for issues such as routing load and mutual visits between different network areas in the next generation Internet.
  • the network router based implementation method is one of the solutions for identity identification and location separation.
  • a network-based identity identification and location separation scheme has been proposed.
  • the network described later in the scheme is simply referred to as an identification network, and is also referred to as an identity and location separation network.
  • the basic idea of this scheme is : The network is divided into an access layer and a core layer, and accordingly, the network is divided into an access network and a backbone network.
  • the mobile node in the network has two types of identifiers: the access identifier (Access Identifier, AID for short) and the routing identifier (RID).
  • Each user in the network has a unique AID, which remains unchanged during the mobile process.
  • the AID can only be used at the access layer, and the RID can only be used at the core layer;
  • the application layer communicates between terminals, the AID is used to identify the peer.
  • FIG. 1 The topology diagram of the above network-based identity identification and location separation framework is shown in FIG. 1. As shown in FIG.
  • Radio Access Network Radio Access Network
  • AGR Access Gateway Router
  • GSR General Switch Router
  • IDMS Identifier Mapping Server
  • the AGR is mainly responsible for providing access services for each mobile node (user terminal), assigning RIDs to the accessed user terminals, and encrypting the data packets of the user terminals and transmitting them in the backbone network.
  • the AGR queries the AID-RID mapping table in the local cache (CACHE) according to the destination address in the data packet (ie, the AID of the communication peer): If the corresponding AID-RID is found. Mapping the entry, the RID of the communication terminal that is found is encapsulated in the packet header and sent to the backbone network for forwarding processing; if the corresponding AID-RID mapping entry is not found, the data packet is forwarded to the backbone network, and The IDMS initiates the process of querying (communicating the peer) AID-RID mapping information, and saves the IDMS return corresponding AID-RID mapping locally, so as to prepare for subsequent forwarding.
  • CACHE the destination address in the data packet
  • the IDMS initiates the process of querying (communicating the peer) AID-RID mapping information, and saves the IDMS return corresponding AID-RID mapping locally, so as to prepare for subsequent forwarding.
  • the AGR may choose not to forward the data packet to the backbone network, but initiate the process of querying the AID-RID mapping information (communicating the peer end) to the IDMS, and wait for the IDMS. After returning the corresponding AID-RID mapping, the RID of the communication terminal that is found is encapsulated in the packet header and sent to the backbone network for forwarding processing.
  • the AGR decapsulates the data packet, and strips the newly added RID packet header in the data packet to the terminal.
  • the main function of the GSR is to select and forward data packets based on the routing location identifier RID in the data packet.
  • IDMS is mainly responsible for maintaining the mapping relationship between user identity and location identifier in the network, and providing query services to access gateway routers and other mapping servers.
  • the certification center which is responsible for recording user categories, user service levels, etc., authenticates and authorizes users when they access them.
  • the Certification Authority supports two-way authentication between the network and the user.
  • the radio access network is responsible for providing and maintaining a Layer 2 link between the user terminal and the access gateway router AGR; and is responsible for radio resource management in the cellular mobile network application scenario. Under the framework shown in Figure 1, the network can be divided into an access network and a backbone network.
  • the access network is located at the edge of the backbone network and is responsible for access by all user terminals. In the RAN part of the access network, all user terminals are addressed by AID.
  • the backbone network is responsible for accessing the routes of user terminals through different access networks. There is no overlap between the access network and the backbone network in the topology relationship.
  • the application layer between the communication hosts uses the AID to identify the peer. The communication between the user terminals only needs to use the AID of the peer.
  • the access gateway router is located at the demarcation point between the backbone network and the access network, and serves as an interface between the access network and the backbone network, and is responsible for providing access services for user terminals, maintaining user connections, and forwarding user data.
  • All communication of the user terminal is forwarded and managed by the access gateway router of the access network.
  • the data packets between the user terminals in the service range of the same access gateway are directly forwarded to the peer.
  • the forwarding of data packets between user terminals in the service range of different access gateway routers is as follows: When the user terminal sends a data packet, the corresponding access gateway router carries the RID information in the forwarded data packet (the RID and the RID) Correspondingly, when the user terminal receives the data packet, the access gateway router performs the reverse operation, that is, strips the RID information and forwards the data packet to the user terminal.
  • the mapping server stores the identity location identifier mapping relationship assigned by all the user terminals that have been accessed in the network, and performs identification relationship analysis with the access gateway router through signaling interaction.
  • the related interface of the network architecture based on the network identity identification and location separation framework is shown in FIG. 2, S1/D1 is an interface between the user terminal and the access gateway router AGR, and S1 is used for signaling of user access management, and D1 is Data forwarding interface; S2 is used for switching management signaling when switching between AGRs, D2 is used for data forwarding between AGRs; D3 is a data forwarding interface between AGR and GSR, and S4/S5/S6 is used for querying and maintaining AIDs.
  • the signaling interface of the RID mapping relationship, D4m is the data forwarding interface between the AGR and the IDMS.
  • the relay IDMS (Broke IDMS) forwards the signaling between the visted IDMS and the Home IDMS.
  • the technical problem to be solved by the present invention is to provide a differentiated service according to different service quality levels of mobile nodes in an identity and location separation network, so as to effectively guarantee different service qualities.
  • Levels of mobile nodes implement methods and systems for different quality of service.
  • the present invention employs the following technical solutions:
  • a method for guaranteeing quality of service of a mobile node comprising: presetting a quality of service level of the mobile node, and presetting a mobile node with different quality of service levels to access the access gateway router Corresponding routing mode; and when the mobile node initiates a service flow, the access gateway router selects a corresponding routing manner according to the quality of service level of the mobile node to forward the data packet.
  • the method further includes: when the mobile node attaches to the network, the authentication center authenticates the authentication request sent by the access gateway to the mobile node; if the authentication is successful, the mobile node initiates a service Flow operation.
  • the method further includes: storing information of a quality of service level of the preset mobile node in the authentication center, and if the authentication is successful, the authentication center sends the service quality level information corresponding to the mobile node to the The access gateway router.
  • the mapping server stores the routing manner of the mobile node;
  • the step of the access gateway router selecting the corresponding routing manner to forward the data packet according to the quality of service level of the mobile node includes: when the mobile node initiates a service flow, the access gateway router reports the mapping The server sends the service quality level information corresponding to the mobile node and the request information for querying the routing manner of the mobile node, and the mapping server selects the corresponding mobile node according to the received quality of service level information corresponding to the mobile node.
  • the routing mode is returned to the access gateway router.
  • the method further includes: storing information of a quality of service level of the preset mobile node in the authentication center, and if the authentication is successful, the authentication center sends the service quality level information corresponding to the mobile node to the mapping server.
  • the mapping server stores the routing manner of the mobile node;
  • the step of the access gateway router selecting the corresponding routing manner to forward the data packet according to the quality of service level of the mobile node includes: When the mobile node initiates a service flow, the access gateway router sends request information for querying the routing manner of the mobile node to the mapping server, where the mapping server is based on the service corresponding to the mobile node obtained from the authentication center.
  • the method further includes: information about a quality of service level of the preset mobile node, and information about the mobile node of the mobile node
  • the routing mode is stored in the mapping server. If the authentication center is successfully authenticated and the mobile node initiates a service flow, the access gateway router sends request information for querying the routing manner of the mobile node to the mapping server, where the mapping is performed.
  • the server corresponds to the service corresponding to the mobile node stored by itself Quality level information, selecting a routing manner corresponding to the mobile node and returning to the access gateway router.
  • the method further includes: the access gateway router querying whether the mobile node is in the cache The routing method, if yes, forwards the data packet according to the routing manner of the mobile node stored in the cache, and if not, sends the request information for querying the routing manner of the mobile node to the mapping server. step.
  • the method further includes: when the mobile node initiates a service flow for the first time, the access gateway router first forwards the data packet, and then sends a request message for querying the routing manner of the mobile node to the mapping server, and The routing manner of the mobile node returned by the mapping server is stored in its own cache.
  • the routing manner is a mapping relationship between a user identity (AID) and a routing location identifier (RID).
  • a system for guaranteeing the quality of service of a mobile node the system being applied to an identity and location separation network, the system comprising a preset module and a routing module disposed in the system; the preset module is configured as: a service of a preset mobile node a quality level, and a routing manner corresponding to a mobile node that presets a different quality of service level when accessing the access gateway router; the routing module is configured to: when the mobile node initiates a service flow, according to the service of the mobile node The quality class selects the corresponding routing mode to forward data packets.
  • the system also includes an authentication center, and the routing module is located in an access gateway router, where:
  • the authentication center is configured to: when the mobile node attaches to the network, authenticate the authentication request sent by the access gateway to the mobile node; if the authentication is successful, the mobile node initiates a service flow Operation.
  • the preset module is further configured to: send a preset quality of service level of the mobile node to the authentication center; the authentication center is further configured to: set a quality of service level of the preset mobile node The information is stored in the authentication center. If the authentication is successful, the authentication center sends the service quality level information corresponding to the mobile node to the routing module.
  • the system further includes a mapping server, where the preset module is further configured to: send a corresponding routing manner to the routing module when the preset mobile node with different quality of service levels accesses the access gateway router ;
  • the mapping server is configured to: store a routing manner of the mobile node; and receive, when the mobile node initiates a service flow, a quality of service level corresponding to the mobile node sent by the access gateway router to the mapping server.
  • the information and the request information sent by the mapping server for querying the routing manner of the mobile node the mapping server selects a routing manner corresponding to the mobile node according to the received quality of service level information corresponding to the mobile node, and returns To the access gateway router.
  • the system further includes a mapping server, where: the preset module is further configured to: send a preset quality level of the mobile node to the authentication center; the authentication center is further configured to: The information about the quality of service level of the mobile node is stored in the authentication center. If the authentication is successful, the authentication center sends the quality of service level information corresponding to the mobile node to the mapping server.
  • the preset module is further configured to: send a preset quality level of the mobile node to the authentication center
  • the authentication center is further configured to: The information about the quality of service level of the mobile node is stored in the authentication center. If the authentication is successful, the authentication center sends the quality of service level information corresponding to the mobile node to the mapping server.
  • the mapping server is configured to: store the a routing manner of the mobile node; and after receiving the request information sent by the routing module for querying the routing manner of the mobile node, selecting the service quality level information corresponding to the mobile node obtained from the authentication center
  • the routing mode corresponding to the mobile node is returned to the routing module; the routing module is configured to: forward the data packet according to the quality of service level of the mobile node according to the following manner:
  • the routing module sends the mapping Server sends a query request routing information of the mobile node and the receiving mobile node mapping routing server returns the corresponding.
  • the system further includes a mapping server, where: the preset module is further configured to: when the preset quality level of the mobile node, and the preset mobile node with different quality of service levels are connected to the access gateway router Corresponding routing manner is sent to the mapping server; the mapping server is configured to: store information about a quality of service level of the preset mobile node, and a routing manner of the mobile node, if the authentication center is successfully authenticated and When the mobile node initiates the service flow, when receiving the request information sent by the access gateway router to the mapping server to query the routing manner of the mobile node, the mapping server moves according to the storage stored by itself.
  • the service quality level information corresponding to the mobile node, the routing mode corresponding to the mobile node is selected and returned to the routing module; the routing module is configured to select corresponding according to the quality of service level of the mobile node as follows
  • the routing mode forwards the data packet: when the mobile node initiates the service flow, the routing module sends the request information for querying the routing manner of the mobile node to the mapping server, and receives the returned by the mapping server.
  • the routing method corresponding to the mobile node is selected and returned to the routing module; the routing module is configured to select corresponding according to the quality of service level of the mobile node as follows
  • the routing mode forwards the data packet: when the mobile node initiates the service flow, the routing module sends the request information for querying the routing manner of the mobile node to the mapping server, and receives the returned by the mapping server.
  • the routing method corresponding to the mobile node is selected and returned to the routing module; the routing module is configured to select corresponding according to the quality of service level of the mobile node as
  • An access gateway router for guaranteeing quality of service of a mobile node, the access gateway router being applied to an identity and location separation network, the access gateway router being configured to: receive a preset quality of service level of the mobile node, and receive the pre- Corresponding routing manners when the mobile node with different quality of service levels accesses the access gateway router; and when the mobile node initiates the service flow, selecting a corresponding routing manner to perform data packet according to the quality of service level of the mobile node Forwarding.
  • the access gateway router is configured to receive a preset quality of service level of the mobile node as follows: the receiving authentication center sends the access gateway to the access gateway when the mobile node attaches to the network After the authentication request for the mobile node is successfully authenticated, the service quality level information corresponding to the mobile node sent to the access gateway router.
  • the access gateway router is configured to receive a preset different service quality level when the mobile node accesses the access gateway router correspondingly: when the mobile node initiates a service flow And the access gateway router sends, to the mapping server that stores the routing manner of the mobile node, the quality of service level information corresponding to the mobile node, and the request information for querying the routing manner of the mobile node, and receives the The mapping server selects and returns a routing manner corresponding to the mobile node of the access gateway router according to the received quality of service level information corresponding to the mobile node.
  • the access gateway router is a corresponding routing party configured to receive a preset different quality of service level mobile node accessing the access gateway router as follows: Type:
  • the access gateway router sends request information for querying the routing manner of the mobile node to the mapping server, where the mapping server is based on a quality of service level from which the preset mobile node is stored. And the quality of service level information corresponding to the mobile node obtained by the authentication center of the information, and selecting and returning to the access gateway router a routing manner corresponding to the mobile node.
  • the access gateway router is configured to receive a preset different quality of service level when the mobile node accesses the access gateway router according to the following manner:
  • the information about the quality of service level of the preset mobile node and the routing manner of the mobile node are stored in the mapping server. If the authentication center is successfully authenticated and the mobile node initiates a service flow, the access gateway router The mapping server sends request information for querying the routing manner of the mobile node, and the mapping server selects and returns the mobile node corresponding to the access gateway router according to the quality of service level information corresponding to the mobile node that is stored by the mapping server. Routing method.
  • the access gateway router is further configured to: the access gateway router queries whether there is a routing manner of the mobile node in its own cache, and if yes, performs data reporting according to the routing manner of the mobile node stored in its own cache.
  • the routing mode is a mapping relationship between a user identity (AID) and a routing location identifier (RID).
  • the present invention enables an operator to preset a service quality level of a mobile node and a corresponding routing manner when a mobile node accesses an access gateway router with different quality of service levels, so that when the mobile node initiates a service During the flow, the access gateway router to which the mobile node belongs may select the corresponding routing mode to forward the data packet according to the quality of service level of the mobile node.
  • the access gateway router to which the mobile node belongs may select the corresponding routing mode to forward the data packet according to the quality of service level of the mobile node.
  • FIG. 1 is a schematic diagram of a network topology of a network-based identity identification and location separation architecture in the prior art
  • FIG. 2 is a schematic diagram of an interface of a network architecture based on a network-based identity identification and location separation framework in the prior art
  • FIG. 4 is a schematic flowchart of a process when a mobile node initiates a service flow according to an embodiment of the present invention
  • the technical problem to be solved by the present invention is to provide differentiated quality of service for mobile nodes (users or user terminals) in the identity and location separation network, and to improve the operator's operational capability in the identity and location separation network.
  • the present invention proposes a QoS class for distinguishing mobile nodes based on the technology of identity and location separation network identity and location separation, and provides corresponding service quality according to the QoS class of the mobile node. method.
  • the main idea of the present invention is: The operator divides the MNs in the access identity and the location separation network into different service types according to the subscription information of the mobile node (MN), and presets corresponding MNs for different service types. Quality of service level.
  • the access gateway router AGR selects a corresponding routing manner according to the QoS level of the MN to forward the data packet.
  • the operator sets different MNs according to the MN's subscription information. Quality of Service, because the MN needs to access the identity and location separation network through the Access Gateway Server (AGR), and multiple different MNs may also access the identity and location separation network through the same AGR. Therefore, in order to implement the MN For differentiated services, the operator also needs to preset multiple different routing modes for the same AGR to divide logical planes of several different QoS levels in the backbone network. Each of the routing methods corresponds to a quality of service level of the MN.
  • the operator needs to preset the routing mode corresponding to the MN accessing the AGR of different QoS classes to the same AGR.
  • the AGR can select the corresponding routing mode according to the QoS level of the MN, and forward the data packets sent by the MN.
  • a differentiated service is implemented for a MN, in order to ensure the accuracy of the quality of service of each MN, when the MN in the access identity and the location separation network attaches to the network, that is, when the MN is attached, the access identity and the access identity are also required.
  • Each MN in the location separation network performs authentication.
  • the purpose of the authentication is mainly to determine whether the mobile node with the access identity and the location separation network is legal, and to authorize the legitimate mobile node.
  • the authentication process is specifically:
  • the access gateway router AGR to which the MN belongs sends an authentication request to the authentication center, and the authentication center receives the authentication request information and performs authentication.
  • the authentication request information of the MN may be a username and password of the MN, and an International Mobile Subscriber Identity (IMSI). If the MN passes the authentication of the authentication center, that is, the authentication succeeds, the MN obtains the authorization of the authentication center, and can perform the operation of initiating the service flow. If the authentication fails, the MN cannot perform the operation of initiating the service flow.
  • IMSI International Mobile Subscriber Identity
  • the preset information of the quality of service level of each MN is stored in the authentication center, and when the access gateway router AGR initiates an authentication request for a certain MN to the authentication center, the authentication center performs the authentication on the MN. If the authentication is successful, the authentication center also stores the access quality gateway level information corresponding to the MN to the access gateway router AGR to which the MN access identity and the location separation network belong. In fact, if the information of the quality of service level of the MN is stored in the authentication center, when the MN initiates the service flow, the AGR also needs to send the service quality level information corresponding to the MN and the request information for querying the MN routing mode to the mapping server.
  • the mapping server stores the routing mode of all the mobile nodes in the network.
  • the mapping server selects the routing mode corresponding to the MN according to the received quality of service level information corresponding to the MN, and returns the routing mode to the access gateway router AGR.
  • the AGR forwards the data packet sent by the MN according to the routing manner of the MN returned from the mapping server.
  • the AGR determines, according to the routing information of the MN, that the communication peer corresponding to the MN belongs to the same AGR as the MN, then the AGR forwards the data packet directly to the AGR to which the communication peer of the MN belongs; If it is determined that the communication peer corresponding to the MN belongs to a different AGR, the AGR forwards the data packet to the backbone network according to the received routing manner of the MN.
  • the AGR When the AGR obtains the routing mode of the MN from the mapping server, the AGR also stores the routing mode of the MN in its own cache. When the MN needs to send subsequent data packets, the AGR queries the MN from its own cache. Routing mode, and forwarding data packets according to the routing mode. That is to say, for the forwarding of data packets of the same service flow of the MN, the AGR may only send a request for querying the routing mode of the MN to the mapping server.
  • the preset information of the quality of service level of each MN is stored in the authentication center.
  • the authentication center also performs an authentication request for the MN.
  • Authentication If the authentication is successful, the authentication center may also send the service quality level information corresponding to the MN to the mapping server. At this time, when the MN initiates the service flow, the request information for querying the MN routing mode is sent to the mapping server.
  • the AGR does not need to send the QoS level information corresponding to the MN to the mapping server.
  • the mapping server queries the request information of the MN routing mode according to the request information of the MN, and selects the routing mode corresponding to the MN according to the QoS level information corresponding to the MN obtained from the authentication center, and returns the routing mode to the AGR.
  • the AGR forwards the data packet to be sent by the MN according to the received routing mode of the MN.
  • the AGR also stores the routing manner of the MN obtained from the mapping server.
  • the AGR queries the routing manner of the MN from its own cache, and according to This routing method forwards data packets. It should be noted that the preset quality of service level information of the mobile node is not limited to being stored in the authentication center.
  • the quality of service level information of the preset mobile node may be directly stored in the mapping server.
  • the authentication center only needs to authenticate the authentication request of a certain MN sent by the AGR, and there is no longer a process of data information interaction. If the authentication is successful, the MN can initiate a service flow.
  • the AGR sends a request message for querying the MN routing mode to the mapping server, and the mapping server stores according to itself.
  • the QoS corresponding to the MN select the routing method corresponding to the MN and return it to the AGR.
  • the AGR forwards the data packet to be sent by the MN according to the received routing mode of the MN.
  • the AGR also stores the routing mode of the MN obtained from the mapping server.
  • the AGR queries the routing mode of the MN from its own cache. The data packet is forwarded according to the routing mode.
  • the AGR to which the MN belongs receives the data packet of a certain service flow initiated by the MN, the AGR of the MN is not immediately sent to the mapping server.
  • the MN first checks whether there is a routing mode of the service flow of the MN in its own cache. If yes, it does not need to send a request for querying the routing mode of the service flow of the MN to the mapping server, but directly according to the storage in the cache. The routing mode of the MN forwards data packets.
  • the AGR may first forward the data packet to the backbone network, and then initiate a request for querying the routing mode of the MN to the mapping server. .
  • the AGR is based on the information about the routing mode of the MN that is returned by the mapping server, and is stored in its own cache.
  • the AGR stores the MN in the cache. Route mode forwards data packets. In fact, there are many ways to forward the data packets of a certain service flow of a mobile node in the AGR of the identity and location separation network.
  • the data packet of the mobile node is encapsulated according to the routing location identifier (RID) according to the AGR in the identity and location separation network. Therefore, in the backbone network, the routing information identifier (RID) is used according to the routing location identifier.
  • the feature of data packet routing is to set the routing mode to the user identity (AID)-route location identifier (RID) mapping relationship. Based on the mapping relationship of the AID-RID, the AGR selects the corresponding mapping relationship to forward the data packet.
  • FIG. 3 it is a flowchart of processing when the MN is attached in an embodiment of the present invention.
  • the mobile node's quality of service level and the mobile node access of different service quality levels are preset.
  • the PPPoE access is taken as an example to further explain the MN attachment of the present invention.
  • the specific process is as follows: 301.
  • a point-to-point protocol over Ethernet (PPPoE) session is established between the MN and the AGR.
  • the authentication information of the MN is sent to the AGR (the authentication information may be a username and a password; It may also be an International Mobile Subscriber Identity (IMSI); 302.
  • the AGR processes the PPPoE session message, and extracts the authentication information of the MN therefrom;
  • the AGR initiates an authentication request to the MN to the authentication center.
  • the certification center authenticates the authentication request information of the MN
  • FIG. 4 is a schematic diagram of a process flow when a mobile node initiates a service flow according to an embodiment of the present invention.
  • the specific processing flow is as follows: 401.
  • the MN initiates a service the service is triggered. Generation of flow;
  • the MN sends the service flow to the AGR.
  • the AGR initiates an AID-RID mapping relationship query to the mapping server. If the MN attaches, the authentication center sends the QoS level of the MN to the AGR. Then, when the AGR sends the mapping relationship query to the mapping server, the AGR needs to send the MN. The QoS level is sent to the mapping server; 404. The mapping server selects an appropriate RID for the MN according to the QoS level of the MN;
  • the mapping server returns the mapping relationship between the AID and the RID to the AGR.
  • the AGR encapsulates the packet of the service flow and forwards the packet to the backbone network according to the mapping relationship.
  • Applying the present invention in the identity and location separation network, preset the QoS level of each MN and also preset several routing modes corresponding to different QoS levels of the MN for each AGR, thereby dividing the identity and location separation network. There are several logical planes of different QoS levels; there are different QoS guarantees between the logical planes.
  • the service flow selection initiated by the MN according to the QoS level of the MN By adopting an appropriate routing manner, it is possible to allocate service flows of MNs of different QoS levels to different logical planes, and achieve different QoS level guarantee effects.
  • the present invention further provides a system for ensuring the quality of service of a mobile node in an identity and location separation network, the system comprising a preset module and a routing module; the preset module is configured to: preset a quality of service level of the mobile node and a routing mode corresponding to the access gateway router to which the mobile node of the different quality of service level belongs; the routing module is configured to: when the mobile node initiates a service flow, select a corresponding routing manner according to the quality of service level of the mobile node Data transfer.
  • the system further includes an authentication center, where the routing module is located at an access gateway router, where: the authentication center is configured to: when the mobile node attaches to the network, send the pair to the access gateway router The authentication request of the mobile node is authenticated; if the authentication is successful, the mobile node performs an operation of initiating a service flow. among them:
  • the preset module is further configured to: send a preset quality of service level of the mobile node to the authentication center; the authentication center is further configured to: store information about the quality of service level of the preset mobile node in The authentication center sends the quality of service level information corresponding to the mobile node to the routing module if the authentication is successful.
  • the system further includes a mapping server, where the preset module is further configured to: send a corresponding routing manner to the routing module when the preset mobile node with different quality of service levels accesses the access gateway router And the mapping server is configured to: store a routing manner of the mobile node; and receive, when the mobile node initiates a service flow, a service quality corresponding to the mobile node sent by the access gateway router to the mapping server The level information and the request information sent by the mapping server to query the routing manner of the mobile node, the mapping server selects a routing method corresponding to the mobile node according to the received quality of service level information corresponding to the mobile node, and Return to the office The access gateway router.
  • the preset module is further configured to: send a corresponding routing manner to the routing module when the preset mobile node with different quality of service levels accesses the access gateway router
  • the mapping server is configured to: store a routing manner of the mobile node; and receive, when the mobile node initiates a service flow, a service quality corresponding
  • the system further includes a mapping server, where: the preset module is further configured to: send a preset quality level of the mobile node to the authentication center; the authentication center is further configured to: The information about the quality of service level of the mobile node is stored in the authentication center. If the authentication is successful, the authentication center sends the quality of service level information corresponding to the mobile node to the mapping server.
  • the preset module is further configured to: send a preset quality level of the mobile node to the authentication center
  • the authentication center is further configured to: The information about the quality of service level of the mobile node is stored in the authentication center. If the authentication is successful, the authentication center sends the quality of service level information corresponding to the mobile node to the mapping server.
  • the mapping server is configured to: store the a routing manner of the mobile node; and after receiving the request information sent by the routing module for querying the routing manner of the mobile node, selecting the service quality level information corresponding to the mobile node obtained from the authentication center
  • the routing mode corresponding to the mobile node is returned to the routing module; the routing module is configured to: forward the data packet according to the quality of service level of the mobile node according to the following manner:
  • the routing module sends the mapping to the mapping Service sends a query request information of the mobile node's routing, routing and receiving the mapping returned by the server to the mobile node corresponding to.
  • the system further includes a mapping server, where: the preset module is further configured to: when the preset quality level of the mobile node, and the preset mobile node with different quality of service levels are connected to the access gateway router Corresponding routing manner is sent to the mapping server; the mapping server is configured to: store information about a quality of service level of the preset mobile node, and a routing manner of the mobile node, if the authentication center is successfully authenticated and When the mobile node initiates the service flow, when receiving the request information sent by the access gateway router to the mapping server to query the routing manner of the mobile node, the mapping server according to the service corresponding to the mobile node stored by itself Quality level information, selecting a routing manner corresponding to the mobile node and returning to the routing module; the routing module is configured to select a corresponding routing manner to perform data reporting according to the quality of service level of the mobile node as follows Forwarding of text: When the mobile node initiates a service flow, The routing module sends request information for querying the routing manner of the mobile node to the
  • the embodiment provides an access gateway router for ensuring the quality of service of the mobile node in the identity and location separation network, which is configured to: receive a preset quality of service level of the mobile node, and receive a preset mobile node with different quality of service levels. Corresponding routing mode when accessing the access gateway router; and when the mobile node initiates the service flow, the corresponding routing manner is selected according to the quality of service level of the mobile node to forward the data packet.
  • the access gateway router is configured to receive a preset quality of service level of the mobile node according to the following manner: when the mobile node attaches to the network, the access authentication center sends the After the authentication request of the mobile node is successfully authenticated, the quality of service level information corresponding to the mobile node sent to the access gateway router.
  • the access gateway router is configured to receive a preset different quality of service level when the mobile node accesses the access gateway router according to the following manner: when the mobile node initiates a service flow, the connection Transmitting, by the gateway router, the service quality level information corresponding to the mobile node and the request information for querying the mobile node routing manner to the mapping server storing the routing manner of the mobile node, and receiving the mapping server according to the received
  • the quality of service level information corresponding to the mobile node is selected and returned to the routing mode corresponding to the mobile node of the access gateway router; or when the mobile node initiates a service flow, the access gateway router
  • the mapping server sends request information for querying the routing manner of the mobile node, and the mapping server obtains the quality of service level information corresponding to the mobile node obtained from the authentication center that stores the information of the quality of service level of the preset mobile node, Selecting and returning to the access gateway router Party or routing information of the mobile node and the mobile node preset quality of service level; mobile
  • the access gateway router is further configured to: the access gateway router queries whether there is a routing manner of the mobile node in its own cache, and if yes, performs data reporting according to the routing manner of the mobile node stored in its own cache. The forwarding of the text, if not, is performed to send request information for querying the routing manner of the mobile node to the mapping server.
  • the method and system for ensuring the quality of service of a mobile node in an identity and location separation network provided by the present invention, the operator can set different quality of service levels for the mobile node according to the subscription information of the mobile node; correspondingly, different service quality is also preset
  • the mapping relationship corresponding to the mobile node of the level accessing the access gateway router so that when the mobile node initiates the service flow, the access gateway router to which the mobile node belongs can select the corresponding road mapping relationship according to the quality of service level of the mobile node. Data forwarding.
  • operators can provide different levels of service quality for different mobile nodes, differentiate services, refine operations, and improve operators' operational capabilities and competitiveness.
  • the present invention enables the operator to preset the service quality level of the mobile node and the corresponding routing mode when the mobile node accesses the access gateway router with different quality of service levels, so that the mobile node When the service flow is initiated, the access gateway router to which the mobile node belongs may select the corresponding routing manner to forward the data packet according to the quality of service level of the mobile node. In this way, operators can provide different levels of service quality for different mobile nodes (user terminals), achieve differentiated services, refine operations, and improve operators' own operational capabilities.

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Abstract

本发明公开了一种保证移动节点服务质量的方法,该方法包括:预设移动节点的服务质量等级,以及预设不同服务质量等级的移动节点接入接入网关路由器时对应的路由方式;以及当所述移动节点发起业务流时,所述接入网关路由器根据所述移动节点的服务质量等级选择对应的路由方式进行数据报文的转发。本发明还公开了一种保证移动节点服务质量的系统以及一种保证移动节点服务质量的接入网关路由器。本发明使得当移动节点在发起业务流时,移动节点所属的接入网关路由器可以根据移动节点的服务质量等级选择对应的路由方式进行数据报文的转发。

Description

一种保证移动节点服务质量的方法及系统
技术领域 本发明涉及通信技术领域, 尤其涉及一种保证移动节点服务质量保证方 法及系统。
背景技术 现有因特网广泛使用的传输控制协议 /互联网络协议 ( Transmission Control Protocol/Internet Protocol, 简称 TCP/IP )中 IP地址具有双重功能, 既 作为网络层的通信终端主机网络接口在网络拓朴中的位置标识, 又作为传输 层主机网络接口的身份标识。 但是, TCP/IP在设计之初并未考虑主机移动的 情况, 当主机移动的情况越来越普遍时, 这种 IP地址的语义过载缺陷日益明 显。 当主机的 IP地址发生变化时, 不仅路由发生变化, 通信终端主机的身份 标识也发生变化, 这样将会导致路由负载越来越重, 而且主机身份标识的变 化还将导致应用和连接的中断。 身份标识和位置分离问题提出的目的是为了解决 IP地址的语义过载和 路由负载严重等问题, 将 IP地址的双重功能进行分离, 从而实现对移动性、 多家乡性、 IP地址动态重分配、 减轻路由负载及下一代互联网中不同网络区 域之间的互访等问题的支持。 现有技术中, 基于网络路由器的实现方法是有关身份标识和位置分离的 解决方案之一。 现有技术中, 已经提出了一种基于网络的身份标识和位置分离方案, 后 面对该方案所描述的网络简称为标识网, 又称为身份与位置分离网络, 这种 方案的基本思想是: 将网络划分为接入层和核心层, 相应地, 网络被划分为 接入网和骨干网。 网络中的移动节点有两种标识类型: 用户身份标识即接入 标识( Access Identifier,简称 AID )和路由标识( Routing Identifier,简称 RID )。 网络中的每个用户拥有唯一的 AID , 该 AID在移动过程中始终保持不变; 在 数据转发过程中, AID只能在接入层使用, RID只能在核心层使用; 在用户 终端间应用层通信时 , 使用 AID识别对端。 上述基于网络的身份标识和位置分离框架的拓朴示意图如图 1所示, 如 图 1所示, 在该基于网络的身份标识和位置分离框架中, 主要包括: 无线接 入网(Radio Access Network , 简称 RAN)、 接入网关路由器( Access Gateway Router, 简称 AGR )、 广义网关路由器( General Switch Router, 简称 GSR ) 、 映射服务器(Identifier Mapping Server, 简称 IDMS ) 、 以及认证中心等。 下 面分别给予介绍:
AGR, 主要负责为各个移动节点 (用户终端)提供接入服务, 为接入的 用户终端分配 RID, 并将用户终端的数据报文进行标识封装后在骨干网中传 输。
AGR在收到用户终端发来的数据报文时,根据数据报文中目的地址(即 通信对端的 AID ) 查询本地緩存(CACHE ) 中的 AID-RID映射表: 如果查 到对应的 AID-RID映射条目, 则将查到的通信终端的 RID封装在报文头部 发送到骨干网进行转发处理; 如果没有查到对应的 AID-RID映射条目, 则将 数据报文转发到骨干网, 并向 IDMS发起查询 (通信对端的 ) AID-RID映射 信息的流程, 并将 IDMS返回对应的 AID-RID映射保存在本地, 以备后续才艮 文转发时查询。 或者, AGR在没有查到对应的 AID-RID映射条目时, 也可 以选择不将数据报文转发到骨干网, 而是向 IDMS发起查询 (通信对端的 ) AID-RID映射信息的流程,待 IDMS返回对应的 AID-RID映射后,将查到的 通信终端的 RID封装在报文头部发送到骨干网进行转发处理。
AGR在收到发往用户终端的数据报文时, 对数据报文进行解封装处理, 剥去数据报文中新增的包含 RID的报文头, 发往终端。
GSR的主要功能是根据数据报文中的路由位置标识 RID进行选路和转 发数据报文。 IDMS 主要负责维护网络中用户身份标识和位置标识的映射关系, 并向 接入网关路由器和其它映射服务器提供查询服务。 认证中心, 认证中心负责记录用户类别、 用户服务等级等信息, 在用户 接入时对用户进行合法性认证和授权。 认证中心支持网络与用户间的双向鉴 权。 无线接入网, 负责提供并维护用户终端到接入网关路由器 AGR之间的 二层链路; 在蜂窝移动网应用场景中负责无线资源管理。 在图 1所示的该框架下, 网络可划分为接入网和骨干网。 接入网位于骨 干网的边缘, 负责所有用户终端的接入, 在接入网 RAN部分, 所有的用户 终端都使用 AID 进行寻址。 骨干网负责通过不同接入网接入用户终端的路 由。 接入网与骨干网在拓朴关系上没有重叠。 通信主机之间应用层使用 AID 标识对端, 用户终端间的通信只需使用对端的 AID进行。 接入网关路由器位于骨干网和接入网的分界点, 作为接入网与骨干网的 接口, 负责为用户终端提供接入服务、 维护用户连接、 以及转发用户数据等。 用户终端的所有通信都通过所在接入网络的接入网关路由器进行转发和管 理。 同一接入网关路由器服务范围内的用户终端之间数据报文直接转发给对 端。 位于不同接入网关路由器服务范围内的用户终端之间数据报文的转发如 下: 用户终端在发出数据报文时, 对应的接入网关路由器在转发的数据报文 中携带 RID信息 (该 RID与 AID相对应) ; 对应的, 用户终端在接收数据 报文时, 接入网关路由器进行相反的操作, 即剥离 RID信息并将数据报文转 发给用户终端。 映射服务器中保存了网络中所有已经接入的用户终端所分配 的身份位置标识映射关系, 并与接入网关路由器通过信令交互进行标识关系 解析。 上述基于网络的身份标识和位置分离框架的网络架构的相关接口如图 2 所示, S1/D1是用户终端与接入网关路由器 AGR的接口, S1用于用户接入 管理的信令, D1是数据转发接口; S2用于 AGR间切换时切换管理信令, D2用于 AGR间切换时的数据转发; D3是 AGR与 GSR间的数据转发接口, S4/S5/S6是用于查询和维护 AID-RID映射关系的信令接口, D4m是 AGR与 IDMS间的数据转发接口。 其中, 在拜访地 IDMS ( visited IDMS )与归属地 IDMS ( Home IDMS )无直联关系时, 中继 IDMS ( Broke IDMS )转发 visted IDMS与 Home IDMS间的信令。 随着电信行业的蓬勃发张, 各运营商之间的竟争也日益加剧, 尤其是围 绕终端、 业务、 以及服务质量展开的竟争越演越烈。 而服务质量正在成为运 营商提高竟争力的核心要素。 随着运营商运营的深入, 用户终端(移动节点) 的类型也趋于复杂化, 用户终端服务的内涵也逐渐拓宽。 因此, 针对不同的 用户终端提供不同级别的服务质量, 达到差异化服务, 精细化运营, 成了提 高运营商运营能力的重要手段。 然而, 在现有身份与位置分离网络技术中, 尚未考虑实现用户终端类型差异化服务质量的解决方案。
发明内容 本发明要解决的技术问题是针对现有技术的不足, 提供一种在身份与位 置分离网络中根据移动节点的不同服务质量等级提供差异化的服务, 从而可 以有效地保证对不同服务质量等级的移动节点实施不同服务质量的方法及系 统。 为实现上述目的, 本发明釆用了以下技术方案:
一种保证移动节点服务质量的方法,该方法应用于身份与位置分离网络, 该方法包括: 预设移动节点的服务质量等级, 以及预设不同服务质量等级的移动节点 接入接入网关路由器时对应的路由方式; 以及 当所述移动节点发起业务流时, 所述接入网关路由器根据所述移动节点 的服务质量等级选择对应的路由方式进行数据报文的转发。 所述方法还包括: 在所述移动节点附着网络时, 认证中心对所述接入网 关路由器发来的对所述移动节点的认证请求进行认证; 若认证成功, 则所述 移动节点进行发起业务流的操作。 所述方法还包括: 将所述预设的移动节点的服务质量等级的信息存储在 所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的服务质 量等级信息发送给所述接入网关路由器。 上述方法中, 映射服务器存储有所述移动节点的路由方式; 所述接入网关路由器根据所述移动节点的服务质量等级选择对应的路由 方式进行数据报文的转发的步骤包括: 当所述移动节点发起业务流时, 所述 接入网关路由器向所述映射服务器发送所述移动节点对应的服务质量等级信 息以及查询所述移动节点路由方式的请求信息, 所述映射服务器根据接收到 的所述移动节点对应的服务质量等级信息, 选择所述移动节点对应的路由方 式并返回给所述接入网关路由器。 所述方法还包括: 将所述预设的移动节点的服务质量等级的信息存储在 所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的服务质 量等级信息发送给映射服务器。 上述方法中, 所述映射服务器存储有所述移动节点的路由方式; 所述接入网关路由器根据所述移动节点的服务质量等级选择对应的路由 方式进行数据报文的转发的步骤包括: 当所述移动节点发起业务流时, 所述 接入网关路由器向所述映射服务器发送查询所述移动节点路由方式的请求信 息, 所述映射服务器根据从所述认证中心获得的所述移动节点对应的服务质 量等级信息, 选择所述移动节点对应的路由方式并返回给所述接入网关路由 哭口 所述方法还包括: 将所述预设的移动节点的服务质量等级的信息以及所述移动节点的路由 方式存储在映射服务器内, 若认证中心认证成功且当所述移动节点发起业务 流时, 所述接入网关路由器向所述映射服务器发送查询所述移动节点路由方 式的请求信息, 所述映射服务器根据自身存储的所述移动节点对应的服务质 量等级信息, 选择所述移动节点对应的路由方式并返回给所述接入网关路由 器。 所述接入网关路由器向所述映射服务器发送查询所述移动节点的路由方 式的请求信息的步骤之前, 所述方法还包括: 所述接入网关路由器查询自身 緩存中是否有所述移动节点的路由方式, 如有, 则根据自身緩存中存储的所 述移动节点的路由方式进行数据报文的转发, 如没有, 则执行向所述映射服 务器发送查询所述移动节点的路由方式的请求信息的步骤。 所述方法还包括: 当所述移动节点首次发起业务流时, 所述接入网关路 由器先进行数据报文的转发, 再向所述映射服务器发送查询所述移动节点路 由方式的请求信息, 并将所述映射服务器返回的所述移动节点的路由方式存 储在自身緩存中。
上述方法中,所述路由方式为用户身份标识(AID ) -路由位置标识(RID ) 的映射关系。
一种保证移动节点服务质量的系统,该系统应用于身份与位置分离网络, 该系统包括设置于系统内的预设模块和路由选择模块; 所述预设模块设置为: 预设移动节点的服务质量等级, 以及预设不同服 务质量等级的移动节点接入接入网关路由器时对应的路由方式; 所述路由选择模块设置为: 当所述移动节点发起业务流时, 根据所述移 动节点的服务质量等级选择对应的路由方式进行数据报文的转发。 所述系统还包括认证中心, 所述路由选择模块位于接入网关路由器, 其 中:
所述认证中心设置为: 在所述移动节点附着网络时, 对所述接入网关路 由器发来的对所述移动节点的认证请求进行认证; 若认证成功, 则所述移动 节点进行发起业务流的操作。 上述系统中, 所述预设模块还设置为: 将预设的移动节点的服务质量等级发送给所述 认证中心; 所述认证中心还设置为: 将所述预设的移动节点的服务质量等级的信息 存储在所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的 服务质量等级信息发送给所述路由选择模块。 所述系统还包括映射服务器, 其中, 所述预设模块还设置为: 将所述预设的不同服务质量等级的移动节点接 入接入网关路由器时对应的路由方式发送给所述路由选择模块; 所述映射服务器设置为: 存储所述移动节点的路由方式; 以及当所述移 动节点发起业务流时, 接收所述接入网关路由器向所述映射服务器发送的所 述移动节点对应的服务质量等级信息以及接收所述映射服务器发送的查询所 述移动节点路由方式的请求信息, 所述映射服务器根据接收到的所述移动节 点对应的服务质量等级信息, 选择所述移动节点对应的路由方式并返回给所 述接入网关路由器。 所述系统还包括映射服务器, 其中: 所述预设模块还设置为: 将预设的移动节点的服务质量等级发送给所述 认证中心; 所述认证中心还设置为: 将所述预设的移动节点的服务质量等级的信息 存储在所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的 服务质量等级信息发送给映射服务器; 所述映射服务器设置为: 存储所述移动节点的路由方式; 以及当接收到 路由选择模块发送来的查询所述移动节点路由方式的请求信息后, 根据从所 述认证中心获得的所述移动节点对应的服务质量等级信息, 选择所述移动节 点对应的路由方式并返回给所述路由选择模块; 所述路由选择模块是设置为按如下方式根据所述移动节点的服务质量等 级选择对应的路由方式进行数据报文的转发:当所述移动节点发起业务流时, 所述路由选择模块向所述映射服务器发送查询所述移动节点路由方式的请求 信息, 并接收所述映射服务器返回的所述移动节点对应的路由方式。 所述系统还包括映射服务器, 其中: 所述预设模块还设置为: 将所述预设的移动节点的服务质量等级, 以及 预设的不同服务质量等级的移动节点接入接入网关路由器时对应的路由方式 发送给所述映射服务器; 所述映射服务器设置为: 存储所述预设的移动节点的服务质量等级的信 息以及所述移动节点的路由方式, 若认证中心认证成功且当所述移动节点发 起业务流时, 当接收到所述接入网关路由器向所述映射服务器发送的查询所 述移动节点路由方式的请求信息时, 所述映射服务器根据自身存储的所述移 动节点对应的服务质量等级信息, 选择所述移动节点对应的路由方式并返回 给所述路由选择模块; 所述路由选择模块是设置为按如下方式根据所述移动节点的服务质量等 级选择对应的路由方式进行数据报文的转发:当所述移动节点发起业务流时, 所述路由选择模块向所述映射服务器发送查询所述移动节点路由方式的请求 信息, 并接收所述映射服务器返回的所述移动节点对应的路由方式。 一种保证移动节点服务质量的接入网关路由器, 所述接入网关路由器应 用于身份与位置分离网络, 所述接入网关路由器设置为: 接收预设的移动节点的服务质量等级, 以及接收预设的不同服务质量等 级的移动节点接入接入网关路由器时对应的路由方式; 以及 当所述移动节点发起业务流时, 根据所述移动节点的服务质量等级选择 对应的路由方式进行数据报文的转发。 上述接入网关路由器中, 所述接入网关路由器是设置为按如下方式接收 预设的移动节点的服务质量等级: 接收认证中心在所述移动节点附着网络时, 对所述接入网关路由器发来 的对所述移动节点的认证请求进行认证成功后, 向所述接入网关路由器发送 的所述移动节点对应的服务质量等级信息。 上述接入网关路由器中, 所述接入网关路由器是设置为按如下方式接收 预设的不同服务质量等级的移动节点接入接入网关路由器时对应的路由方 式: 当所述移动节点发起业务流时, 所述接入网关路由器向所述存储有所述 移动节点的路由方式的映射服务器发送所述移动节点对应的服务质量等级信 息以及查询所述移动节点路由方式的请求信息, 并接收所述映射服务器根据 接收到的所述移动节点对应的服务质量等级信息选择并返回给所述接入网关 路由器的所述移动节点对应的路由方式。 上述接入网关路由器中, 所述接入网关路由器是设置为按如下方式接收 预设的不同服务质量等级的移动节点接入接入网关路由器时对应的路由方 式:
当所述移动节点发起业务流时, 所述接入网关路由器向所述映射服务器 发送查询所述移动节点路由方式的请求信息, 所述映射服务器根据从存储有 预设的移动节点的服务质量等级的信息的认证中心获得的所述移动节点对应 的服务质量等级信息, 选择并向所述接入网关路由器返回所述移动节点对应 的路由方式。 上述接入网关路由器中, 所述接入网关路由器是设置为按如下方式接收 预设的不同服务质量等级的移动节点接入接入网关路由器时对应的路由方 式:
所述预设的移动节点的服务质量等级的信息以及所述移动节点的路由方 式存储在映射服务器内, 若认证中心认证成功且当所述移动节点发起业务流 时, 所述接入网关路由器向所述映射服务器发送查询所述移动节点路由方式 的请求信息, 所述映射服务器根据自身存储的所述移动节点对应的服务质量 等级信息,选择并向所述接入网关路由器返回所述移动节点对应的路由方式。 所述接入网关路由器还设置为: 所述接入网关路由器查询自身緩存中是 否有所述移动节点的路由方式, 如有, 则根据自身緩存中存储的所述移动节 点的路由方式进行数据报文的转发, 如没有, 则执行向所述映射服务器发送 查询所述移动节点的路由方式的请求信息。 上述接入网关路由器中, 所述路由方式为用户身份标识(AID ) -路由位 置标识(RID ) 的映射关系。
由于釆用了以上技术方案, 本发明使得运营商能够预先设置移动节点的 服务质量等级以及不同服务质量等级的移动节点接入接入网关路由器时对应 的路由方式, 从而使得当移动节点在发起业务流时, 移动节点所属的接入网 关路由器可以根据移动节点的服务质量等级选择对应的路由方式进行数据报 文的转发。 如此, 运营商可以针对不同的移动节点 (用户终端)提供不同级 别的服务质量, 达到差异化服务,精细化运营,提高运营商自身的运营能力。 附图概述 图 1为现有技术中基于网络的身份标识和位置分离架构的网络拓朴示意 图; 图 2为现有技术中基于网络的身份标识和位置分离框架的网络架构的接 口示意图; 图 3为本发明一种实施例的移动节点附着网络时的处理流程示意图; 图 4为本发明一种实施例的移动节点发起业务流时的处理流程示意图。
本发明的较佳实施方式 下面通过具体实施方式结合附图对本发明作进一步详细说明。 需要说明 的是, 在不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任 意组合。 服务质量(Quality of Service, 简称 QoS )是运营商运营网络, 提高服务 需要解决的一个重要问题。 目前,针对不同的用户提供不同级别的服务质量, 达到差异化服务, 精细化运营, 是提高运营商自身运营能力以及自身竟争能 力的重要手段。 然而, 在目前的身份与位置分离网络技术中, 尚未考虑服务 质量的解决方案。 本发明要解决的技术问题是: 给身份与位置分离网络中的移动节点 (用 户或用户终端)提供差异化的服务质量, 提高运营商在身份与位置分离网络 中的运营能力。 为解决目前存在的技术问题, 本发明在基于身份与位置分离 网络身份、 位置分离的技术基础上, 提出了一种区分移动节点的 QoS等级, 并根据移动节点的 QoS等级提供相应的服务质量的方法。 本发明的主要构思是: 运营商根据移动节点 (Mobile Node, 简称 MN ) 的签约信息, 将接入身份与位置分离网络中的 MN分成不同的服务类型, 并 预先为不同服务类型的 MN设置对应的服务质量等级。当 MN发起业务流时, 接入网关路由器 AGR根据 MN的服务质量等级选择对应的路由方式进行数 据报文的转发。 具体地说, 运营商根据 MN的签约信息, 为 MN设置不同的 服务质量等级, 由于 MN需要通过接入网关服务器(AGR )接入身份与位置 分离网络, 并且多个不同的 MN还可能会通过同一个 AGR接入身份与位置 分离网络, 因此, 为了实现 MN的差异化服务, 运营商还需要给同一个 AGR 预设多种不同的路由方式,从而在骨干网中划分出几种不同 QoS等级的逻辑 平面。 其中每一种路由方式与 MN的一种服务质量等级对应。 也就是说, 运 营商需要给同一个 AGR预设几种与不同 QoS等级的 MN接入 AGR时对应 的路由方式。 当不同服务质量等级的 MN通过同一个 AGR接入身份与位置 分离网络时, AGR能够根据该 MN的服务质量等级, 选择对应的路由方式, 将 MN发来的数据报文进行转发。 在对 MN实施差异化服务的实施例中, 为了保证每个 MN服务质量的准 确性, 在接入身份与位置分离网络中的 MN附着网络时, 即 MN附着时, 还 需要对接入身份与位置分离网络中的每个 MN进行认证, 认证的目的主要是 判断接入身份与位置分离网络的移动节点是否合法, 并对合法的移动节点进 行授权。认证过程具体是: MN所属的接入网关路由器 AGR向认证中心发送 对该 MN的认证请求,认证中心接收该认证请求信息并进行认证。其中, MN 的认证请求信息可以是 MN的用户名、密码,以及国际移动用户识别码 IMSI。 若该 MN通过认证中心的认证, 即认证成功, 那么该 MN则获得认证中心的 授权, 可以进行发起业务流的操作。 若认证失败, 那么, 该 MN则不能进行 发起业务流的操作。 在一种实施例中, 将预设的每个 MN的服务质量等级的信息存储在认证 中心, 当接入网关路由器 AGR向认证中心发起对某个 MN的认证请求时, 认证中心对该 MN进行认证;若认证成功,认证中心还将存储在自身的该 MN 对应的服务质量等级信息发送给该 MN接入身份与位置分离网络时所属的接 入网关路由器 AGR。 实际上, 若将 MN的服务质量等级的信息存储在认证中心, 那么在 MN 发起业务流时, AGR还需要向映射服务器发送该 MN对应的服务质量等级信 息以及查询该 MN路由方式的请求信息。 其中, 映射服务器中存储了网络中 所有移动节点的路由方式, 此时映射服务器根据接收到的该 MN对应的服务 质量等级信息, 选择该 MN对应的路由方式并返回给接入网关路由器 AGR。 AGR根据从映射服务器处返回的该 MN的路由方式将 MN发来的数据报文 进行转发。 AGR根据该 MN的路由方式的信息, 判断该 MN对应的通信对 端与该 MN属于同一个 AGR时, 那么该 AGR则将数据报文直接转发到该 MN的通信对端所属的 AGR; 若 AGR判断该 MN所对应的通信对端与该 MN属于不同的 AGR, 那么该 AGR则将根据接收到的该 MN的路由方式将 数据报文转发到骨干网。 当 AGR从映射服务器处获得该 MN的路由方式时, AGR还将该 MN的路由方式存储在自身緩存中, 当该 MN由后续数据报文 需要发送时, AGR则从自身緩存中查询到该 MN的路由方式,并根据该路由 方式进行数据报文的转发。 也就是说, 对于 MN的同一个业务流的数据报文 的转发情况, AGR可以只向映射服务器发送一次查询该 MN的路由方式的请 求即可。
实际上, 将预设的每个 MN的服务质量等级的信息存储在认证中心, 当 接入网关路由器 AGR向认证中心发起对某个 MN的认证请求时, 认证中心 还对该 MN的认证请求进行认证; 若认证成功, 认证中心还可将该 MN对应 的服务质量等级信息发送给映射服务器。 此时, 当该 MN发起业务流时, 向 映射服务器发送查询该 MN路由方式的请求信息, 然而此时 AGR则不需要 将该 MN对应的服务质量等级信息发送给映射服务器。映射服务器根据 AGR 发来的查询该 MN路由方式的请求信息,并结合从认证中心获得的该 MN对 应的服务质量等级信息, 选择该 MN对应的路由方式, 并将该路由方式返回 给 AGR。 AGR根据接收到的该 MN的路由方式, 将 MN需发送的数据报文 进行转发。 当然, AGR还存储从映射服务器处获得的该 MN的路由方式, 当 该 MN的同一个业务流还有后续数据报文发送时, AGR则从自身緩存中查询 到该 MN的路由方式, 并根据该路由方式进行数据报文的转发。 需要说明的是, 预设的移动节点的服务质量等级信息不只限于存储在认 证中心, 在一种实施例中, 还可将预设的移动节点的服务质量等级信息直接 存储在映射服务器。 此时, 当 MN附着时, 认证中心则只需要对 AGR发送 的某个 MN的认证请求进行认证, 则不再会有数据信息交互的过程。 若认证 成功, 该 MN则可以发起业务流。 同样地, 当 MN发起业务流时, AGR向 映射服务器发送查询该 MN路由方式的请求信息, 映射服务器根据自身存储 的该 MN对应的服务质量等级信息, 选择该 MN对应的路由方式并返回给 AGR。 AGR根据接收到的该 MN的路由方式, 将 MN需发送的数据报文进 行转发。 同样地, 当然, AGR还存储从映射服务器处获得的该 MN的路由方 式, 当该 MN的同一个业务流还有后续报文发送时, AGR则从自身緩存中查 询到该 MN的路由方式, 并根据该路由方式进行数据报文的转发。 实际上, 当 MN所属的 AGR接收到 MN发起的某个业务流的数据报文 时, 并不是马上就向映射服务器发送查询该 MN的路由方式。 MN会首先检 查自身緩存中是否有该 MN该业务流的路由方式, 若有, 则不必要再向映射 服务器发送查询该 MN该业务流的路由方式的请求, 而是直接根据自身緩存 中存储的该 MN的路由方式进行数据报文的转发。 釆用此种方式, 在一定程 度上降低了一些 AGR不必要的系统开销。 在实际运用过程中,对于 MN发起的第一个数据报文转发的业务流, AGR 还可以先将该数据报文转发到骨干网中, 然后再向映射服务器发起查询该 MN的路由方式的请求。 AGR根据映射服务器处返回的该 MN的路由方式的 信息, 并将其保存在自身緩存中, 当该 MN发起的同一业务有后续数据报文 需要发送时, AGR按照自身緩存中存储的该 MN的路由方式进行数据报文的 转发。 实际上, 身份与位置分离网络中 AGR对某个移动节点某一业务流的数 据报文进行转发时路由方式有很多种。 在一种实施例中, 根据身份与位置分 离网络中的 AGR对移动节点的数据报文根据路由位置标识( RID )做了外层 封装, 所以在骨干网中, 都是根据路由位置标识 (RID )进行数据报文路由 的特点, 将路由方式具体设置为用户身份标识 (AID ) -路由位置标识 (RID) 的映射关系。 AGR根据 AID-RID的映射关系, 选择相应的映射关系将数据 报文进行转发。 如图 3所示, 为本发明一种实施例中 MN附着时的处理流程图, 当然, 在 MN附着之前, 已经预设好移动节点的服务质量等级以及不同服务质量等 级的移动节点接入接入网关路由器时的路由方式。 下面根据图 3 , 以 PPPoE 方式接入为例,对本发明 MN附着时做进一步更详细的说明,具体流程如下: 301、 MN和 AGR之间建立以太网上的点对点协议( Point-to-Point Protocol over Ethernet, 简称 PPPoE )会话; 在会话过程中, 将 MN的认证信息发送 给 AGR (认证信息可以是用户名和密码; 也可以是国际移动用户识别码 IMSI ) ; 302、 AGR处理 PPPoE会话消息, 从中提取出 MN的认证信息;
303、 AGR向认证中心发起对 MN的认证请求;
304、 认证中心对 MN的认证请求信息进行认证;
305、 认证中心对 AGR的认证请求进行应答, 返回认证结果(通过或者 不通过) , 如果是通过, 则将 MN的 QoS等级返回给 AGR; 306、 认证中心将 MN的 QoS等级发送给映射服务器; 关于 MN的 QoS等级, 认证中心可以发送给 AGR, 也可以发送给映射 服务器, 在实际使用时, 两种方案任选一种即可。 如图 4所示, 为本发明一种实施例的移动节点发起业务流时的处理流程 示意图, 当 MN发起业务流时的具体处理流程如下: 401、 当 MN发起某一项业务时, 触发业务流的产生;
402、 MN将业务流发送给 AGR;
403、 AGR向映射服务器发起 AID-RID映射关系查询,假设 MN附着时 认证中心将 MN的 QoS等级下发给了 AGR, 那么此时, AGR在向映射服务 器发送映射关系查询时, 还需将 MN的 QoS等级发送给映射服务器; 404、 映射服务器根据 MN的 QoS等级为 MN选取合适的 RID;
405、 映射服务器将 AID和 RID的映射关系返回给 AGR; AGR根据映 射关系对业务流的报文进行封装并转发到骨干网。 应用本发明,在身份与位置分离网络中,预设每个 MN的 QoS等级并且 还为每个 AGR预设几种与不同的 MN的 QoS等级对应的路由方式, 从而将 身份与位置分离网络划分出几种不同 QoS等级的逻辑平面;各个逻辑平面之 间有不同的 QoS保证, 因此, 根据 MN的 QoS等级为 MN发起的业务流选 取合适的路由方式,就能够实现将不同 QoS等级的 MN的业务流分配到不同 的逻辑平面, 达到不同的 QoS等级保证的效果。 同时, 本发明还提供了一种保证身份与位置分离网络中移动节点服务质 量的系统,该系统包括预设模块和路由选择模块; 所述预设模块设置为: 预设移动节点的服务质量等级以及不同服务质量 等级的移动节点所属的接入网关路由器对应的路由方式; 所述路由选择模块设置为: 当所述移动节点发起业务流时, 根据所述移 动节点的服务质量等级选择对应的路由方式进行数据传输。 所述系统还包括认证中心, 所述路由选择模块位于接入网关路由器, 其 中: 所述认证中心设置为: 在所述移动节点附着网络时, 对所述接入网关路 由器发来的对所述移动节点的认证请求进行认证; 若认证成功, 则所述移动 节点进行发起业务流的操作。 其中:
所述预设模块还设置为: 将预设的移动节点的服务质量等级发送给所述 认证中心; 所述认证中心还设置为: 将所述预设的移动节点的服务质量等级的信息 存储在所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的 服务质量等级信息发送给所述路由选择模块。 所述系统还包括映射服务器, 其中, 所述预设模块还设置为: 将所述预设的不同服务质量等级的移动节点接 入接入网关路由器时对应的路由方式发送给所述路由选择模块; 所述映射服务器设置为: 存储所述移动节点的路由方式; 以及当所述移 动节点发起业务流时, 接收所述接入网关路由器向所述映射服务器发送的所 述移动节点对应的服务质量等级信息以及接收所述映射服务器发送的查询所 述移动节点路由方式的请求信息, 所述映射服务器根据接收到的所述移动节 点对应的服务质量等级信息, 选择所述移动节点对应的路由方式并返回给所 述接入网关路由器。 所述系统还包括映射服务器, 其中: 所述预设模块还设置为: 将预设的移动节点的服务质量等级发送给所述 认证中心; 所述认证中心还设置为: 将所述预设的移动节点的服务质量等级的信息 存储在所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的 服务质量等级信息发送给映射服务器; 所述映射服务器设置为: 存储所述移动节点的路由方式; 以及当接收到 路由选择模块发送来的查询所述移动节点路由方式的请求信息后, 根据从所 述认证中心获得的所述移动节点对应的服务质量等级信息, 选择所述移动节 点对应的路由方式并返回给所述路由选择模块; 所述路由选择模块是设置为按如下方式根据所述移动节点的服务质量等 级选择对应的路由方式进行数据报文的转发:当所述移动节点发起业务流时, 所述路由选择模块向所述映射服务器发送查询所述移动节点路由方式的请求 信息, 并接收所述映射服务器返回的所述移动节点对应的路由方式。 所述系统还包括映射服务器, 其中: 所述预设模块还设置为: 将所述预设的移动节点的服务质量等级, 以及 预设的不同服务质量等级的移动节点接入接入网关路由器时对应的路由方式 发送给所述映射服务器; 所述映射服务器设置为: 存储所述预设的移动节点的服务质量等级的信 息以及所述移动节点的路由方式, 若认证中心认证成功且当所述移动节点发 起业务流时, 当接收到所述接入网关路由器向所述映射服务器发送的查询所 述移动节点路由方式的请求信息时, 所述映射服务器根据自身存储的所述移 动节点对应的服务质量等级信息, 选择所述移动节点对应的路由方式并返回 给所述路由选择模块; 所述路由选择模块是设置为按如下方式根据所述移动节点的服务质量等 级选择对应的路由方式进行数据报文的转发:当所述移动节点发起业务流时, 所述路由选择模块向所述映射服务器发送查询所述移动节点路由方式的请求 信息, 并接收所述映射服务器返回的所述移动节点对应的路由方式。
本实施例提供了一种保证身份与位置分离网络中移动节点服务质量的接 入网关路由器, 其设置为: 接收预设的移动节点的服务质量等级, 以及接收预设的不同服务质量等 级的移动节点接入接入网关路由器时对应的路由方式; 以及 当所述移动节点发起业务流时, 根据所述移动节点的服务质量等级选择 对应的路由方式进行数据报文的转发。 其中, 所述接入网关路由器是设置为按如下方式接收预设的移动节点的 服务质量等级: 接收认证中心在所述移动节点附着网络时, 对所述接入网关路由器发来 的对所述移动节点的认证请求进行认证成功后, 向所述接入网关路由器发送 的所述移动节点对应的服务质量等级信息。 其中, 所述接入网关路由器是设置为按如下方式接收预设的不同服务质 量等级的移动节点接入接入网关路由器时对应的路由方式: 当所述移动节点发起业务流时, 所述接入网关路由器向所述存储有所述 移动节点的路由方式的映射服务器发送所述移动节点对应的服务质量等级信 息以及查询所述移动节点路由方式的请求信息, 并接收所述映射服务器根据 接收到的所述移动节点对应的服务质量等级信息选择并返回给所述接入网关 路由器的所述移动节点对应的路由方式; 或者 当所述移动节点发起业务流时, 所述接入网关路由器向所述映射服务器 发送查询所述移动节点路由方式的请求信息, 所述映射服务器根据从存储有 预设的移动节点的服务质量等级的信息的认证中心获得的所述移动节点对应 的服务质量等级信息, 选择并向所述接入网关路由器返回所述移动节点对应 的路由方式; 或者 所述预设的移动节点的服务质量等级的信息以及所述移动节点的路由方 式存储在映射服务器内, 若认证中心认证成功且当所述移动节点发起业务流 时, 所述接入网关路由器向所述映射服务器发送查询所述移动节点路由方式 的请求信息, 所述映射服务器根据自身存储的所述移动节点对应的服务质量 等级信息,选择并向所述接入网关路由器返回所述移动节点对应的路由方式。 所述接入网关路由器还设置为: 所述接入网关路由器查询自身緩存中是 否有所述移动节点的路由方式, 如有, 则根据自身緩存中存储的所述移动节 点的路由方式进行数据报文的转发, 如没有, 则执行向所述映射服务器发送 查询所述移动节点的路由方式的请求信息。
应用本发明提供的一种保证身份与位置分离网络中移动节点服务质量的 方法及系统, 运营商可以根据移动节点的签约信息, 为移动节点设置不同的 服务质量等级; 相应地也预设不同服务质量等级的移动节点接入接入网关路 由器时对应的映射关系, 从而使得当移动节点在发起业务流时, 移动节点所 属的接入网关路由器可以根据移动节点的服务质量等级选择对应的路映射关 系进行数据转发。 这样, 运营商可以针对不同的移动节点提供不同等级的服 务质量, 达到差异化服务, 精细化运营, 提高运营商自身的运营能力以及竟 争力。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。 以上内容是结合具体的实施方式对本发明所作的进一步详细说明, 不能 认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说, 在不脱离本发明构思的前提下, 还可以做出多种简单推演或 替换, 都应当视为属于本发明的保护范围。 工业实用性 由于釆用了以上技术方案, 本发明使得运营商能够预先设置移动节点的 服务质量等级以及不同服务质量等级的移动节点接入接入网关路由器时对应 的路由方式, 从而使得当移动节点在发起业务流时, 移动节点所属的接入网 关路由器可以根据移动节点的服务质量等级选择对应的路由方式进行数据报 文的转发。 如此, 运营商可以针对不同的移动节点 (用户终端)提供不同级 别的服务质量, 达到差异化服务,精细化运营,提高运营商自身的运营能力。

Claims

权 利 要 求 书
1、 一种保证移动节点服务质量的方法, 其特征在于, 该方法应用于身份 与位置分离网络, 该方法包括: 预设移动节点的服务质量等级, 以及预设不同服务质量等级的移动节点 接入接入网关路由器时对应的路由方式; 以及 当所述移动节点发起业务流时, 所述接入网关路由器根据所述移动节点 的服务质量等级选择对应的路由方式进行数据报文的转发。
2、如权利要求 1所述的方法, 所述方法还包括: 在所述移动节点附着网 络时, 认证中心对所述接入网关路由器发来的对所述移动节点的认证请求进 行认证; 若认证成功, 则所述移动节点进行发起业务流的操作。
3、如权利要求 2所述的方法, 所述方法还包括: 将所述预设的移动节点 的服务质量等级的信息存储在所述认证中心, 若认证成功, 所述认证中心则 将所述移动节点对应的服务质量等级信息发送给所述接入网关路由器。
4、 如权利要求 3所述的方法, 其中, 映射服务器存储有所述移动节点的路由方式; 所述接入网关路由器根据所述移动节点的服务质量等级选择对应的路由 方式进行数据报文的转发的步骤包括: 当所述移动节点发起业务流时, 所述 接入网关路由器向所述映射服务器发送所述移动节点对应的服务质量等级信 息以及查询所述移动节点路由方式的请求信息, 所述映射服务器根据接收到 的所述移动节点对应的服务质量等级信息, 选择所述移动节点对应的路由方 式并返回给所述接入网关路由器。
5、如权利要求 2所述的方法, 所述方法还包括: 将所述预设的移动节点 的服务质量等级的信息存储在所述认证中心, 若认证成功, 所述认证中心则 将所述移动节点对应的服务质量等级信息发送给映射服务器。
6、如权利要求 5所述的方法, 其中, 所述映射服务器存储有所述移动节 点的路由方式; 所述接入网关路由器根据所述移动节点的服务质量等级选择对应的路由 方式进行数据报文的转发的步骤包括: 当所述移动节点发起业务流时, 所述 接入网关路由器向所述映射服务器发送查询所述移动节点路由方式的请求信 息, 所述映射服务器根据从所述认证中心获得的所述移动节点对应的服务质 量等级信息, 选择所述移动节点对应的路由方式并返回给所述接入网关路由 哭口
7、 如权利要求 2所述的方法, 所述方法还包括: 将所述预设的移动节点的服务质量等级的信息以及所述移动节点的路由 方式存储在映射服务器内, 若认证中心认证成功且当所述移动节点发起业务 流时, 所述接入网关路由器向所述映射服务器发送查询所述移动节点路由方 式的请求信息, 所述映射服务器根据自身存储的所述移动节点对应的服务质 量等级信息, 选择所述移动节点对应的路由方式并返回给所述接入网关路由 器。
8、如权利要求 4或 6或 7所述的方法,所述接入网关路由器向所述映射 服务器发送查询所述移动节点的路由方式的请求信息的步骤之前, 所述方法 还包括: 所述接入网关路由器查询自身緩存中是否有所述移动节点的路由方 式, 如有, 则根据自身緩存中存储的所述移动节点的路由方式进行数据报文 的转发, 如没有, 则执行向所述映射服务器发送查询所述移动节点的路由方 式的请求信息的步骤。
9、如权利要求 3或 5所述的方法, 所述方法还包括: 当所述移动节点首 次发起业务流时, 所述接入网关路由器先进行数据报文的转发, 再向所述映 射服务器发送查询所述移动节点路由方式的请求信息, 并将所述映射服务器 返回的所述移动节点的路由方式存储在自身緩存中。
10、 如权利要求 1-7中任一项所述的方法, 其中, 所述路由方式为用户 身份标识 (AID ) -路由位置标识(RID ) 的映射关系。
11、 一种保证移动节点服务质量的系统, 其特征在于, 该系统应用于身 份与位置分离网络, 该系统包括设置于系统内的预设模块和路由选择模块; 所述预设模块设置为: 预设移动节点的服务质量等级, 以及预设不同服 务质量等级的移动节点接入接入网关路由器时对应的路由方式; 所述路由选择模块设置为: 当所述移动节点发起业务流时, 根据所述移 动节点的服务质量等级选择对应的路由方式进行数据报文的转发。
12、如权利要求 11所述的系统, 所述系统还包括认证中心, 所述路由选 择模块位于接入网关路由器, 其中: 所述认证中心设置为: 在所述移动节点附着网络时, 对所述接入网关路 由器发来的对所述移动节点的认证请求进行认证; 若认证成功, 则所述移动 节点进行发起业务流的操作。
13、 如权利要求 12所述的系统, 其中: 所述预设模块还设置为: 将预设的移动节点的服务质量等级发送给所述 认证中心; 所述认证中心还设置为: 将所述预设的移动节点的服务质量等级的信息 存储在所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的 服务质量等级信息发送给所述路由选择模块。
14、 如权利要求 13所述的系统, 所述系统还包括映射服务器, 其中, 所述预设模块还设置为: 将所述预设的不同服务质量等级的移动节点接 入接入网关路由器时对应的路由方式发送给所述路由选择模块; 所述映射服务器设置为: 存储所述移动节点的路由方式; 以及当所述移 动节点发起业务流时, 接收所述接入网关路由器向所述映射服务器发送的所 述移动节点对应的服务质量等级信息以及接收所述映射服务器发送的查询所 述移动节点路由方式的请求信息, 所述映射服务器根据接收到的所述移动节 点对应的服务质量等级信息, 选择所述移动节点对应的路由方式并返回给所 述接入网关路由器。
15、 如权利要求 12所述的系统, 所述系统还包括映射服务器, 其中: 所述预设模块还设置为: 将预设的移动节点的服务质量等级发送给所述 认证中心; 所述认证中心还设置为: 将所述预设的移动节点的服务质量等级的信息 存储在所述认证中心, 若认证成功, 所述认证中心则将所述移动节点对应的 服务质量等级信息发送给映射服务器; 所述映射服务器设置为: 存储所述移动节点的路由方式; 以及当接收到 路由选择模块发送来的查询所述移动节点路由方式的请求信息后, 根据从所 述认证中心获得的所述移动节点对应的服务质量等级信息, 选择所述移动节 点对应的路由方式并返回给所述路由选择模块; 所述路由选择模块是设置为按如下方式根据所述移动节点的服务质量等 级选择对应的路由方式进行数据报文的转发:当所述移动节点发起业务流时, 所述路由选择模块向所述映射服务器发送查询所述移动节点路由方式的请求 信息, 并接收所述映射服务器返回的所述移动节点对应的路由方式。
16、 如权利要求 12所述的系统, 所述系统还包括映射服务器, 其中: 所述预设模块还设置为: 将所述预设的移动节点的服务质量等级, 以及 预设的不同服务质量等级的移动节点接入接入网关路由器时对应的路由方式 发送给所述映射服务器; 所述映射服务器设置为: 存储所述预设的移动节点的服务质量等级的信 息以及所述移动节点的路由方式, 若认证中心认证成功且当所述移动节点发 起业务流时, 当接收到所述接入网关路由器向所述映射服务器发送的查询所 述移动节点路由方式的请求信息时, 所述映射服务器根据自身存储的所述移 动节点对应的服务质量等级信息, 选择所述移动节点对应的路由方式并返回 给所述路由选择模块; 所述路由选择模块是设置为按如下方式根据所述移动节点的服务质量等 级选择对应的路由方式进行数据报文的转发:当所述移动节点发起业务流时, 所述路由选择模块向所述映射服务器发送查询所述移动节点路由方式的请求 信息, 并接收所述映射服务器返回的所述移动节点对应的路由方式。
17、 一种保证移动节点服务质量的接入网关路由器, 其特征在于, 所述 接入网关路由器应用于身份与位置分离网络, 所述接入网关路由器设置为: 接收预设的移动节点的服务质量等级, 以及接收预设的不同服务质量等 级的移动节点接入接入网关路由器时对应的路由方式; 以及 当所述移动节点发起业务流时, 根据所述移动节点的服务质量等级选择 对应的路由方式进行数据报文的转发。
18、如权利要求 17所述的接入网关路由器, 其中, 所述接入网关路由器 是设置为按如下方式接收预设的移动节点的服务质量等级: 接收认证中心在所述移动节点附着网络时, 对所述接入网关路由器发来 的对所述移动节点的认证请求进行认证成功后, 向所述接入网关路由器发送 的所述移动节点对应的服务质量等级信息。
19、如权利要求 18所述的接入网关路由器, 其中, 所述接入网关路由器 是设置为按如下方式接收预设的不同服务质量等级的移动节点接入接入网关 路由器时对应的路由方式: 当所述移动节点发起业务流时, 所述接入网关路由器向所述存储有所述 移动节点的路由方式的映射服务器发送所述移动节点对应的服务质量等级信 息以及查询所述移动节点路由方式的请求信息, 并接收所述映射服务器根据 接收到的所述移动节点对应的服务质量等级信息选择并返回给所述接入网关 路由器的所述移动节点对应的路由方式。
20、如权利要求 18所述的接入网关路由器, 其中, 所述接入网关路由器 是设置为按如下方式接收预设的不同服务质量等级的移动节点接入接入网关 路由器时对应的路由方式: 当所述移动节点发起业务流时, 所述接入网关路由器向所述映射服务器 发送查询所述移动节点路由方式的请求信息, 所述映射服务器根据从存储有 预设的移动节点的服务质量等级的信息的认证中心获得的所述移动节点对应 的服务质量等级信息, 选择并向所述接入网关路由器返回所述移动节点对应 的路由方式。
21、如权利要求 18所述的接入网关路由器, 其中, 所述接入网关路由器 是设置为按如下方式接收预设的不同服务质量等级的移动节点接入接入网关 路由器时对应的路由方式: 所述预设的移动节点的服务质量等级的信息以及所述移动节点的路由方 式存储在映射服务器内, 若认证中心认证成功且当所述移动节点发起业务流 时, 所述接入网关路由器向所述映射服务器发送查询所述移动节点路由方式 的请求信息, 所述映射服务器根据自身存储的所述移动节点对应的服务质量 等级信息,选择并向所述接入网关路由器返回所述移动节点对应的路由方式。
22、如权利要求 19或 20或 21所述的接入网关路由器,所述接入网关路 由器还设置为: 所述接入网关路由器查询自身緩存中是否有所述移动节点的 路由方式, 如有, 则根据自身緩存中存储的所述移动节点的路由方式进行数 据报文的转发, 如没有, 则执行向所述映射服务器发送查询所述移动节点的 路由方式的请求信息。
23、 如权利要求 17-22中任一项所述的接入网关路由器, 其中, 所述路 由方式为用户身份标识 (AID ) -路由位置标识(RID ) 的映射关系。
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