WO2007085148A1 - Method and system for negotiating qos by the mobile node based on mpls network - Google Patents

Method and system for negotiating qos by the mobile node based on mpls network Download PDF

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Publication number
WO2007085148A1
WO2007085148A1 PCT/CN2006/002087 CN2006002087W WO2007085148A1 WO 2007085148 A1 WO2007085148 A1 WO 2007085148A1 CN 2006002087 W CN2006002087 W CN 2006002087W WO 2007085148 A1 WO2007085148 A1 WO 2007085148A1
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WIPO (PCT)
Prior art keywords
qos
ler
mobile node
qos resource
node user
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PCT/CN2006/002087
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French (fr)
Chinese (zh)
Inventor
Gang Cheng
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Huawei Technologies Co., Ltd.
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Publication of WO2007085148A1 publication Critical patent/WO2007085148A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/15—Flow control; Congestion control in relation to multipoint traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/78—Architectures of resource allocation
    • H04L47/783—Distributed allocation of resources, e.g. bandwidth brokers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/824—Applicable to portable or mobile terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/825—Involving tunnels, e.g. MPLS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Definitions

  • the present invention relates to the field of network communications, and in particular, to a method and system for QoS (Quality of Service) negotiation of a mobile node of an MPLS (Multi-Protocol Label Switching) network.
  • QoS Quality of Service
  • MPLS Multi-Protocol Label Switching
  • NGN Next Generation Network
  • IP Next Generation Network
  • the NGN network supports mobile communication between mobile networks and fixed wireless networks, as well as mobile communication between different network layers of fixed and wireless networks.
  • the Y.mpls-mob standard's draft proposes three different types.
  • the network-level mobility models are intra-access (internet access), inter-access (inter-subnet access), and inter-network (inter-network access).
  • the three different network-level mobility models are shown in Figure 1. Shown.
  • LER Label Edge Router
  • LER Label Edge Router
  • MPLS provides signaling and transport mechanisms to support QoS, traffic engineering, and VPN functions.
  • Using MPLS technology can better meet the needs of mobile node users for QoS, traffic engineering and VPN services than using pure IP technology.
  • no specific implementation method is provided for QoS negotiation of mobile node users based on the MPLS network.
  • the mobile model proposes a scheme for QoS negotiation of mobile node users based on MPLS network.
  • a mobile node user based on a multi-protocol label switching MPLS network sends a quality of service QoS resource allocation request to a next-generation network NGN functional entity through a label edge router/foreign agent LER/FA of the mobile node user before transmitting and receiving a message. ;
  • the NGN function entity allocates a QoS resource to the mobile node user according to the received QoS resource allocation request.
  • the step A includes:
  • a mobile node user based on the MPLS network sends a QoS resource request to the LER/FA of the mobile node user before sending and receiving the message, where the request carries a corresponding QoS parameter; A2, the LER/FA receives the message After the QoS resource request, the QoS resource allocation request carrying the QoS parameter is sent to the NGN function entity.
  • the step B specifically includes -
  • the NGN function entity After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user according to the QoS parameter carried in the QoS resource allocation request, and returns a QoS allocation response to the LER/FA;
  • the LER/FA After receiving the QoS allocation response, the LER/FA returns to the mobile node user. Return QoS resource response.
  • step B further includes:
  • the mobile node user After receiving the QoS resource response, the mobile node user performs QoS service on various user services by using the QoS resources allocated by the NGN functional entity.
  • the invention also provides a method for multi-protocol label switching network mobile node to negotiate quality of service, the mobile node user based on the MPLS network is in the same label edge router/region foreign agent LER/RFA or label edge router/gateway foreign agent LER/ When moving in an area under the jurisdiction of the GFA, the method includes the steps of:
  • the mobile node user sends a QoS resource allocation request to the NGN functional entity through its current LER/FA, and accepts the QoS resource allocated by the NGN functional entity through its current LER/FA;
  • the mobile node user sends a QoS resource allocation request to the NGN functional entity through the LER/RFA or LER/GFA, and accepts the QoS resource allocated by the NGN functional entity through the LER/RFA or the LER/GFA.
  • the step C specifically includes:
  • the mobile node user sends a QoS resource request to its target LER/FA, and after receiving the request, the target LER/FA sends a QoS negotiation request to the current LER/FA of the mobile node user, where the target LER/FA and the Determining QoS resource negotiation between the current LER FAs, and then sending the QoS resource allocation request to the NGN function entity by the current LER/FA;
  • the NGN function entity After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the current LER/FA, where the current LER/FA is located.
  • the target LER/FA returns a QoS negotiation response, and the target LER/FA returns a QoS resource response to the mobile node user.
  • the step C further includes:
  • the mobile node user After receiving the QoS resource response, the mobile node user performs QoS service on various user services by using the QoS resources allocated by the NGN functional entity.
  • the step D specifically includes: D1.
  • the mobile node user sends a QoS resource request to its target LER/FA, and after receiving the request, the target LER/FA sends a QoS negotiation request to the LER RFA or LER/GFA, the LER/RFA or LER/ QoS resource negotiation between the GFA and the target LER/FA, and then the LER/RFA or LER/GFA sends a QoS resource allocation request to the NGN functional entity;
  • the NGN function entity After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the LER7RPA or LER/GFA, the LER/RFA or LER7GFA Returning a QoS negotiation response to the target LER/FA, the target LER/FA returning a QoS resource response to the mobile node user.
  • the step D further includes:
  • the mobile node user After receiving the QoS resource response, the mobile node user performs QoS service on various user services by using the QoS resources allocated by the NGN functional entity.
  • the method further includes:
  • the present invention also provides a multi-protocol label switching network mobile node for performing quality of service negotiation, comprising: LER/FA and NGN functional entities, a QoS resource requesting module is set in the LER/FA, and the first QoS is set in the NGN functional entity.
  • the resource allocation module before the mobile node user sends and receives the message:
  • the first QoS resource requesting module is configured to: send a QoS resource allocation request to the NGN functional entity; and the QoS resource allocation module is configured to allocate the QoS resource to the mobile node user according to the QoS resource allocation request received by the NGN functional entity.
  • the present invention also provides a multi-protocol label switching network mobile node for performing quality of service negotiation, the system comprising: a current LER7FA, LER/RFA, and NGN functional entity of a mobile node user, or the system includes: a mobile node user The current LER/FA, LER/GFA, and NGN function entities; the first QoS resource request module is set in the current LER/FA of the mobile node user, and the second QoS resource request module is set in the LER/RFA and LER/GFA, and the NGN function is provided.
  • the entity Having a QoS resource allocation module In the entity Having a QoS resource allocation module;
  • a first QoS resource requesting module configured to send a QoS resource allocation request to the NGN functional entity, and send the QoS resource allocated by the NGN functional entity to the mobile node user;
  • a second QoS resource requesting module configured to send a QoS resource allocation request to the NGN functional entity, and send the QoS resource allocated by the NGN functional entity to the mobile node user;
  • QoS resource allocation module configured to allocate QoS resources to the mobile node user according to the QoS resource allocation request received by the NGN functional entity.
  • the system further includes: a target LER/FA of the mobile node user, where the first QoS negotiation module is set in the target LER/FA;
  • the first QoS negotiation module receives the QoS resource request sent by the mobile node user, sends a QoS negotiation request to the current LER/FA of the mobile node user, and performs QoS resource negotiation with the first QoS resource request module in the current LER/FA,
  • a QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, the QoS resource allocation module allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the first QoS resource requesting module, the first QoS resource request
  • the module returns a QoS negotiation response to the first QoS negotiation module, and the first QoS negotiation module returns a QoS resource response to the mobile node user.
  • the system further includes: a target LER/FA of the mobile node user, and a second QoS negotiation module is set in the target LER/FA;
  • the second QoS negotiation module receives the QoS resource request sent by the mobile node user, sends a QoS negotiation request to the LER/RFA or LER/GFA, and performs QoS resources with the second QoS resource request module in the LER/RFA or LER/GFA.
  • the second QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, the QoS resource allocation module allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the second QoS resource requesting module, and second The QoS resource requesting module returns a QoS negotiation response to the second QoS negotiation module, and the second QoS negotiation module The mobile node user returns a QoS resource response.
  • the present invention is directed to an MPLS network-based mobile network node based on three network mobility models described in the Y.mpls-mob before sending and receiving a message.
  • Figure 1 shows a schematic diagram of three different network-level mobility models in the Y.mpls-mob draft standard
  • FIG. 2 is a processing flowchart of an embodiment of a method for performing QoS negotiation by a mobile node user according to the present invention before a mobile node sends and receives a message according to an MPLS network;
  • FIG. 3 is a flowchart of an embodiment of a method for performing QoS negotiation by a mobile node user according to the present invention, in an LSP path extension process;
  • FIG. 4 is a flowchart of a process of an embodiment of a method for performing QoS negotiation by a mobile node user in the LSP path optimization process for an inter-access network mobility model;
  • FIG. 5 is a flowchart of a process of an embodiment of a method for performing QoS negotiation by a mobile node user in the LSP path optimization process for an inter-network network mobility model. Mode for carrying out the invention
  • the present invention describes a method for QoS negotiation of four MPLS network mobile node users before the mobile node based on the MPLS network sends and receives messages, and for the three network mobility models described in the above Y.mpls-mob. And process.
  • FIG. 2 The processing flow of the embodiment of the method for performing QoS negotiation by the MPLS network-based mobile node before sending and receiving a message is shown in FIG. 2 . Including the following steps:
  • Step 21 The mobile node user sends a current message to the current area before sending and receiving the message
  • the LER/FA Label Edge Router/Foreign Agent
  • QoS resource request which carries QoS parameters such as bandwidth and delay.
  • Step 22 After receiving the QoS resource request sent by the mobile node user, the current LER/FA sends a QoS resource allocation request to the NGN function entity, where the request carries the QoS parameter.
  • Step 23 The NGN function entity mainly completes the access control function, and reserves and allocates the mobile node user by using an SLA (Service Level Agreement) allocation function according to the QoS parameter carried in the received QoS resource allocation request.
  • the QoS resource then, sends a QoS resource allocation response to the current LER/FA.
  • SLA Service Level Agreement
  • Step 24 After receiving the QoS resource allocation response sent by the NGN function entity, the current LER7FA sends a QoS resource response to the mobile node user.
  • the mobile node user After receiving the QoS resource response, the mobile node user can use the QoS resources allocated by the NGN functional entity to perform QoS service on various user services.
  • the MPLS network-based mobile node proposed by the present invention performs QoS negotiation as follows:
  • the mobile node user's mobile range is limited to the same LER/FA jurisdictional area. After completing the handover, the mobile node user does not have to establish a new LSP path and resend the QoS resource request request to the LER/FA. The mobile node user continues to use the QoS resources that have been assigned to itself.
  • the mobile node user's mobile range is limited to the same LER/RFA (regional foreign agent) jurisdiction, but does not belong to the same LER/FA. Therefore, after the mobile node user completes the handover and moves to the new network area, it may be restricted by the resources of the new network area, which temporarily fails to meet the actual application requirements, and causes the QoS service quality to deteriorate.
  • the mobile node user needs to renegotiate the QoS quality of service, resend the resource request to the LER/FA, and send a binding update request to the CN node user to establish a new LSP optimization path.
  • LSP path extension process refers to the process in which a mobile node user registers a new CoA (care-of address) with LER/HA (label edge router/home agent). In the process, new and old LER/FA (label edge router/foreign agent)
  • CoA care-of address
  • LER/HA label edge router/home agent
  • new and old LER/FA label edge router/foreign agent
  • a bidirectional LSP path is established between the mobile node user and the CN node.
  • the LSP path optimization process refers to the process of establishing a new LSP path with the communication node user in order to reduce the transmission delay and more effectively utilize the system resources after the mobile node user moves to the new area.
  • FIG. 3 the processing flow of the embodiment of the MPLS network-based mobile node performing QoS negotiation according to the present invention is as shown in FIG. 3, and includes the following steps:
  • Step 31 The mobile node user based on the MPLS network sends a registration request to the target LER/FA of the target area.
  • the mobile request carries new CoA information of the mobile node user.
  • Step 32 After the mobile node user sends a registration request to the target LER/FA, it sends a QoS resource request to the target LER/FA, where the request carries QoS parameters such as bandwidth and delay.
  • Step 33 The target LER/FA forwards the received registration request to the LER/HA (home agent) of the mobile node user.
  • Step 34 The target LER/FA sends a QoS negotiation request to the current LER/FA of the mobile node user, and the QoS resource negotiation between the target LER/FA and the current LER/FA.
  • Step 35 The current LER/FA sends a QoS resource allocation request to the NGN functional entity.
  • Step 36 The NGN reserves and allocates QoS resources to the mobile node user by using an SLA allocation function according to the QoS parameters carried in the received QoS resource allocation request, and then sends a QoS resource allocation response to the current LER/FA. .
  • Step 37 After receiving the QoS resource allocation response sent by the NGN function entity, the current LER/FA sends a QoS negotiation response to the target LER/FA. '
  • Step 38 After receiving the QoS resource negotiation response sent by the current LER/FA, the target LER/FA sends a QoS resource response to the mobile node user.
  • Step 39 The LER/HA sends a registration response to the target LER/FA.
  • Step 310 The target LER/FA sends a registration response to the mobile node user. After receiving the QoS resource response, the mobile node user may use the QoS resources allocated by the NGN function entity to perform QoS service on various user services in the LSP path extension process.
  • the processing flow of the embodiment of the MPLS network-based mobile node QoS negotiation method proposed by the present invention is as shown in FIG. 4, and includes the following steps:
  • Step 41 The mobile node user based on the MPLS network sends a binding request to the target LER/FA of the target area.
  • Step 42 The target LER/FA forwards the received binding request to the CN (Core Network).
  • Step 43 The mobile node user sends a QoS resource request to the target LER/FA, where the request carries QoS parameters such as bandwidth and delay.
  • Step 44 The target LER/FA sends a QoS negotiation request to the LER/RFA of the mobile node user, and performs QoS resource negotiation between the target LER/FA and the LER/RJF A.
  • Step 45 The LER/RFA sends a QoS resource allocation request to the NGN functional entity.
  • Step 46 The NGN reserves and allocates QoS resources to the mobile node user by using an SLA allocation function according to the QoS parameters carried in the received QoS resource allocation request, and then sends a QoS resource allocation response to the current LER/RFA. .
  • Step 47 After receiving the QoS resource allocation response sent by the NGN function entity, the LER/RFA sends a QoS negotiation response to the target LER/FA.
  • Step 48 After receiving the QoS resource negotiation response sent by the LER7RFA, the target LER/FA sends a QoS resource response to the mobile node user.
  • the mobile node user After receiving the QoS resource response, the mobile node user can utilize the QoS resources allocated by the NGN functional entity to perform QoS service on various user services in the LSP path optimization process.
  • the mobile node user's mobile range is limited to different LER/RPA-administered areas under the same LER/GFA (Gateway Foreign Agent), so the mobile node user completes the handover and moves to the new one.
  • the mobile node user needs to renegotiate the QoS quality of service, resend the resource request to the LER/FA, and send a binding update request to the CN node user to establish a new LSP optimization.
  • Path The mobile node user moves from the beginning to the new LSP path establishment process and also includes two processes of LSP path extension and LSP path optimization.
  • the MPLS network-based mobile node proposed by the present invention performs the QoS negotiation method in the same manner as the above-described inter-access network mobility model.
  • the processing flow of the embodiment of the MPLS network-based mobile node QoS negotiation method is as shown in FIG. 5, and includes the following steps:
  • Step 51 The mobile node user based on the MPLS network sends a binding request to the target LER/FA of the target area.
  • Step 52 The target LER/FA forwards the received binding request to the CN (Core Network).
  • Step 53 The mobile node user sends a QoS resource request to the target LER/FA, where the request carries QoS parameters such as bandwidth and delay.
  • Step 54 The target LER/FA sends a QoS negotiation request to the LER/GFA of the mobile node user, and performs QoS resource negotiation between the target LER/FA and the LER/GF A.
  • Step 55 The LER/GFA sends a QoS resource allocation request to the NGN functional entity.
  • Step 56 The NGN reserves and allocates QoS resources to the mobile node user by using an SLA allocation function according to the QoS parameters carried in the received QoS resource allocation request, and then sends a QoS resource allocation response to the current LER/GFA. .
  • Step 57 After receiving the QoS resource allocation response sent by the NGN function entity, the LER/GFA sends a QoS negotiation response to the target LER/FA.
  • Step 58 After receiving the QoS resource negotiation response sent by the LER/GFA, the target LER/FA sends a QoS resource response to the mobile node user.
  • the mobile node user After receiving the QoS resource response, the mobile node user can utilize the QoS resources allocated by the NGN functional entity to perform QoS service for various user services in the LSP path optimization process.
  • the system for negotiating the quality of service of the multi-protocol label switching network mobile node includes: LER7FA and NGN functional entities, where LER/ is implemented before the mobile node user sends and receives the message.
  • the first QoS is set in the FA
  • the resource requesting module is provided with a first QoS resource allocation module in the NGN functional entity.
  • the mobile node user sends a QoS resource request to the LER/FA, and the QoS resource request carries the QoS parameter.
  • the first QoS resource requesting module sends a QoS resource allocation request, a QoS resource allocation request, to the NGN functional entity. It carries QoS parameters.
  • the QoS resource allocation module reserves and allocates QoS resources to the mobile node user through the SLA allocation function according to the QoS resource allocation request received by the NGN functional entity, and returns a QoS resource allocation response to the LER/FA.
  • the first QoS resource requesting module After receiving the QoS resource allocation response, the first QoS resource requesting module returns a QoS resource response to the mobile node user. Specifically, it is described in the above method.
  • the system for implementing the MPLS network mobile node quality of service negotiation includes: the current LER FA of the mobile node user The target LER/FA, LER/RJFA, and NGN functional entities, or the system includes: a current LER/FA.
  • Target LER/FA, LER/GFA, and NGN functional entity of the mobile node user includes: the current LER FA of the mobile node user The target LER/FA, LER/RJFA, and NGN functional entities, or the system includes: a current LER/FA.
  • Target LER/FA, LER/GFA, and NGN functional entity of the mobile node user includes: the current LER FA of the mobile node user The target LER/FA, LER/RJFA, and NGN functional entities, or the system includes: a current LER/FA.
  • Target LER/FA, LER/GFA, and NGN functional entity of the mobile node user includes: the current LER/FA of the mobile node user The target LER/FA, LER/R
  • the first QoS resource requesting module is set in the current LER/FA
  • the first QoS negotiation module and the second QoS negotiation module are set in the target LER/FA
  • the second QoS resource requesting module is set in the LER/RFA and the LER/GFA.
  • the QoS resource allocation module is set in the NGN functional entity.
  • the first QoS negotiation module receives a QoS resource request sent by the mobile node user, where the QoS resource request carries a QoS parameter, and the first QoS negotiation module sends a QoS negotiation to the current LER/FA of the mobile node user.
  • the allocation module allocates a corresponding QoS resource to the mobile node user by using the SLA allocation function according to the QoS parameter carried in the QoS resource allocation request, and returns a QoS resource allocation response to the first QoS resource requesting module, where the first QoS resource requesting module is first.
  • QoS negotiation module returns QoS association
  • the first QoS negotiation module returns a QoS resource response to the mobile node user.
  • the mobile node user can use the QoS resources allocated by the NGN functional entity to provide QoS services for various user services in the LSP path extension process. Specifically, it is described in the above method.
  • the second QoS negotiation module receives the QoS resource request sent by the mobile node user, where the QoS resource request carries the QoS parameter, and the second QoS negotiation module sends the QoS negotiation request to the LER/RFA or the LER/GFA.
  • the mobile node user can use the QoS resources allocated by the NGN functional entity to provide QoS services for various user services in the LSP path optimization process. Specifically, it is described in the above method.

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Abstract

Method and system for negotiating QoS by the mobile node based on MPLS network. The method includes: when the mobile node based on MPLS network moves in the region of a same LER/RFA (label edge router/region foreign agent) or LER/GFA (label edge router/gateway foreign agent), it transmits a QoS resource allocation request to the NGN function entity through the current LER/FA of the mobile node user and accepts the resource allocated by the NGN function entity; the mobile node user transmits a QoS resource allocation request to the NGN function entity through the LER/RFA or LER/GFA, and accepts the resource allocated by the NGN function entity. By the invention, it proposes a scheme for negotiating QoS by the mobile node user based on MPLS network to point to three network mobile models described in the Y.mpls-mob and before that the mobile node user based on MPLS network transmits and receives the message.

Description

多协议标签交换网络移动节点进行服务质量协商的方法和*** 技术领域  Method and system for service quality negotiation of multi-protocol label switching network mobile node
本发明涉及网络通讯领域， 尤其涉及一种 MPLS (多协议标签交换） 网 络移动节点进行 QoS (服务质量） 协商的方法和***。 发明背景  The present invention relates to the field of network communications, and in particular, to a method and system for QoS (Quality of Service) negotiation of a mobile node of an MPLS (Multi-Protocol Label Switching) network. Background of the invention
NGN (Next Generation Network, 下一代网络） 是釆用 IP等分组技术作 为承载网技术，并且融合固定通信和移动通信，通过通信实体之间的 IP连接 性来承载语音、 图像和数据等多种电信业务的融合网络。 为了实现 NGN业 务功能， 需要解决 IP承载网络的服务质量、 安全性、 可靠性、可运营和可管 理等问题。  NGN (Next Generation Network) is a bearer network technology that uses packet technology such as IP, and combines fixed and mobile communications to carry voice, image and data and other telecommunications through IP connectivity between communicating entities. Converged network of services. In order to implement the NGN service function, it is necessary to solve the problems of service quality, security, reliability, operation, and manageability of the IP bearer network.
NGN网络支持移动节点用户在固定网和无线网络之间的移动通信， 以 及在固定网和无线网络的不同网络层次之间的移动通信， Y.mpls-mob标准 ' 草案中提出了三种不同的网络层次的移动模型， 分别是 intra-access (子网内 访问） 、 inter- access (子网间访问） 和 inter- network (网间访问） ， 上述三 种不同的网络层次的移动模型如图 1所示。  The NGN network supports mobile communication between mobile networks and fixed wireless networks, as well as mobile communication between different network layers of fixed and wireless networks. The Y.mpls-mob standard's draft proposes three different types. The network-level mobility models are intra-access (internet access), inter-access (inter-subnet access), and inter-network (inter-network access). The three different network-level mobility models are shown in Figure 1. Shown.
按照 Y.mpls-mob中的定义， LER (标签边缘路由器） 具有以下的功能 作用： 将 IP报文从移动节点用户传输到 CN (核心网络）或将 IP报文从 CN传 输到移动节点用户； 将端到端的 QoS需求映射到接入网的 QoS功能； 将 IP报 文加上 label标记。  According to the definition in Y.mpls-mob, LER (Label Edge Router) has the following functions: Transfer IP packets from mobile node users to CN (core network) or IP packets from CN to mobile node users; Map end-to-end QoS requirements to QoS functions of the access network; label IP packets with label.
由于大多数的移动网络已经过渡到使用 IP技术进行传输，并且大多数的 IP路由器支持 MPLS功能。 因此， 在固定和无线网络中， 基于 MPLS的移动 控制和传输功能的 NGN业务是目前研究的一个热点。 MPLS提供了信令和传 输机制用以支持 QoS、 流量工程和 VPN功能。 使用 MPLS技术可以比使用纯 IP技术更好地满足移动节点用户对 QoS、 流量工程和 VPN业务的需求。 在现有技术中， 对于基于 MPLS网络的移动节点用户的 QoS协商没有提 供具体的实现方法。 发明内容 本发明的目的是提供一种 MPLS网络移动节点进行 QoS协商的方法和 ***， 从而针对基于 MPLS网络的移动节点用户在发送和接收报文之前和 Y.mpls-mob中描述的三种网络移动模型，提出了基于 MPLS网络的移动节点 用户进行 QoS协商的方案。 Since most mobile networks have transitioned to use IP technology for transmission, most IP routers support MPLS. Therefore, in fixed and wireless networks, NGN services based on MPLS-based mobility control and transmission functions are currently a hot topic. MPLS provides signaling and transport mechanisms to support QoS, traffic engineering, and VPN functions. Using MPLS technology can better meet the needs of mobile node users for QoS, traffic engineering and VPN services than using pure IP technology. In the prior art, no specific implementation method is provided for QoS negotiation of mobile node users based on the MPLS network. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and system for QoS negotiation of an MPLS network mobile node, so as to describe three networks described by the mobile node user based on the MPLS network before and after transmitting and receiving the message and in Y.mpls-mob The mobile model proposes a scheme for QoS negotiation of mobile node users based on MPLS network.
本发明的目的是通过以下技术方案实现的：  The object of the invention is achieved by the following technical solutions:
一种多协议标签交换网络移动节点进行服务质量协商的方法， 包括步 骤：  A method for multi-protocol label switching network mobile node to negotiate quality of service includes the following steps:
A、基于多协议标签交换 MPLS网络的移动节点用户在发送和接收报文之 前，通过该移动节点用户的标签边缘路由器 /外地代理 LER/FA向下一代网络 NGN功能实体发送服务质量 QoS资源分配请求；  A. A mobile node user based on a multi-protocol label switching MPLS network sends a quality of service QoS resource allocation request to a next-generation network NGN functional entity through a label edge router/foreign agent LER/FA of the mobile node user before transmitting and receiving a message. ;
B、 所述 NGN功能实体根据接收到的所述 QoS资源分配请求， 给所述移 动节点用户分配 QoS资源。 '  B. The NGN function entity allocates a QoS resource to the mobile node user according to the received QoS resource allocation request. '
优选的， 所述的步骤 A具体包括：  Preferably, the step A includes:
A 基于 MPLS网络的移动节点用户在发送和接收报文之前， 向该移动 节点用户的 LER/FA发送 QoS资源请求， 该请求中携带相应的 QoS参数； A2、 所述 LER/FA接收到所述 QoS资源请求后， 向所述 NGN功能实体发 送携带有 QoS参数的 QoS资源分配请求。  A mobile node user based on the MPLS network sends a QoS resource request to the LER/FA of the mobile node user before sending and receiving the message, where the request carries a corresponding QoS parameter; A2, the LER/FA receives the message After the QoS resource request, the QoS resource allocation request carrying the QoS parameter is sent to the NGN function entity.
优选的， 所述的步骤 B具体包括- Preferably, the step B specifically includes -
Bl、 所述 NGN功能实体接收到所述 QoS资源分配请求后， 根据 QoS资源 分配请求中承载的 QoS参数给所述移动节点用户分配相应的 QoS资源， 向所 述 LER/FA返回 QoS分配响应； After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user according to the QoS parameter carried in the QoS resource allocation request, and returns a QoS allocation response to the LER/FA;
B2、 所述 LER/FA接收到所述 QoS分配响应后， 向所述移动节点用户返 回 QoS资源响应。 B2. After receiving the QoS allocation response, the LER/FA returns to the mobile node user. Return QoS resource response.
可选的， 所述的步骤 B还包括：  Optionally, the step B further includes:
所述移动节点用户接收到所述 QoS资源响应后， 利用所述 NGN功能实体 分配的 QoS资源， 对各种用户业务进行 QoS服务。  After receiving the QoS resource response, the mobile node user performs QoS service on various user services by using the QoS resources allocated by the NGN functional entity.
本发明还提供一种多协议标签交换网络移动节点进行服务质量协商的 方法，基于 MPLS网络的移动节点用户在同一个标签边缘路由器 /区域外地代 理 LER/RFA或标签边缘路由器 /网关外地代理 LER/GFA管辖的区域中移动 时， 所述方法包括步骤：  The invention also provides a method for multi-protocol label switching network mobile node to negotiate quality of service, the mobile node user based on the MPLS network is in the same label edge router/region foreign agent LER/RFA or label edge router/gateway foreign agent LER/ When moving in an area under the jurisdiction of the GFA, the method includes the steps of:
C、移动节点用户通过其当前 LER/FA向 NGN功能实体发送 QoS资源分配 请求， 并通过其当前 LER/FA接受 NGN功能实体分配的 QoS资源； 和 /或 C. The mobile node user sends a QoS resource allocation request to the NGN functional entity through its current LER/FA, and accepts the QoS resource allocated by the NGN functional entity through its current LER/FA; and/or
D、 移动节点用户通过所述 LER/RFA或 LER/GFA向 NGN功能实体发送 QoS资源分配请求， 并通过 LER/RFA或 LER/GFA接受 NGN功能实体分配的 QoS资源。 D. The mobile node user sends a QoS resource allocation request to the NGN functional entity through the LER/RFA or LER/GFA, and accepts the QoS resource allocated by the NGN functional entity through the LER/RFA or the LER/GFA.
优选的， 所述的步骤 C具体包括：  Preferably, the step C specifically includes:
C1、所述移动节点用户向其目标 LER/FA发送 QoS资源请求，目标 LER/FA 接收到该请求后， 向移动节点用户的当前 LER/FA发送 QoS协商请求， 所述 目标 LER/FA与所述当前 LER FA之间进行 QoS资源协商， 然后， 所述当前 LER/FA向 NGN功能实体发送 QoS资源分配请求；  C1: The mobile node user sends a QoS resource request to its target LER/FA, and after receiving the request, the target LER/FA sends a QoS negotiation request to the current LER/FA of the mobile node user, where the target LER/FA and the Determining QoS resource negotiation between the current LER FAs, and then sending the QoS resource allocation request to the NGN function entity by the current LER/FA;
C2、所述 NGN功能实体接收到所述 QoS资源分配请求后， 给所述移动节 点用户分配相应的 QoS资源， 向所述当前 LER/FA返回 QoS资源分配响应， 所述当前 LER/FA向所述目标 LER/FA返回 QoS协商响应， 所述目标 LER/FA 向所述移动节点用户返回 QoS资源响应。  After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the current LER/FA, where the current LER/FA is located. The target LER/FA returns a QoS negotiation response, and the target LER/FA returns a QoS resource response to the mobile node user.
优选的， 所述的步骤 C还包括： '  Preferably, the step C further includes:
所述移动节点用户接收到所述 QoS资源响应后， 利用所述 NGN功能实体 分配的 QoS资源， 对各种用户业务进行 QoS服务。  After receiving the QoS resource response, the mobile node user performs QoS service on various user services by using the QoS resources allocated by the NGN functional entity.
优选的， 所述的步骤 D具体包括： Dl、 所述移动节点用户向其目标 LER/FA发送 QoS资源请求， 目标 LER/FA接收到该请求后， 向所述 LER RFA或 LER/GFA发送 QoS协商请求， 所述 LER/RFA或 LER/GFA与所述目标 LER/FA之间进行 QoS资源协商， 然 后， 所述 LER/RFA或 LER/GFA向 NGN功能实体发送 QoS资源分配请求；Preferably, the step D specifically includes: D1. The mobile node user sends a QoS resource request to its target LER/FA, and after receiving the request, the target LER/FA sends a QoS negotiation request to the LER RFA or LER/GFA, the LER/RFA or LER/ QoS resource negotiation between the GFA and the target LER/FA, and then the LER/RFA or LER/GFA sends a QoS resource allocation request to the NGN functional entity;
D2、所述 NGN功能实体接收到所述 QoS资源分配请求后， 给所述移动节 点用户分配相应的 QoS资源，向所述 LER7RPA或 LER/GFA返回 QoS资源分配 响应， 所述 LER/RFA或 LER7GFA向所述目标 LER/FA返回 QoS协商响应， 所 述目标 LER/FA向所述移动节点用户返回 QoS资源响应。 D2: After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the LER7RPA or LER/GFA, the LER/RFA or LER7GFA Returning a QoS negotiation response to the target LER/FA, the target LER/FA returning a QoS resource response to the mobile node user.
优选的， 所述的步骤 D还包括：  Preferably, the step D further includes:
所述移动节点用户接收到所述 QoS资源响应后， 利用所述 NGN功能实体 分配的 QoS资源， 对各种用户业务进行 QoS服务。  After receiving the QoS resource response, the mobile node user performs QoS service on various user services by using the QoS resources allocated by the NGN functional entity.
可选的， 所述方法还包括：  Optionally, the method further includes:
基于 MPLS网络的移动节点用户在同一个 LER/FA管辖的区域中移动时， 移动节点用户继续使用已经分配给自己的 QoS资源。  When a mobile node user based on an MPLS network moves in the same LER/FA jurisdiction, the mobile node user continues to use the QoS resources already allocated to itself.
本发明还提供一种多协议标签交换网络移动节点进行服务质量协商的 ***，包括： LER/FA和 NGN功能实体， LER/FA中设置有 QoS资源请求模块， NGN功能实体中设置有第一 QoS资源分配模块， 在移动节点用户发送和接 收报文之前：  The present invention also provides a multi-protocol label switching network mobile node for performing quality of service negotiation, comprising: LER/FA and NGN functional entities, a QoS resource requesting module is set in the LER/FA, and the first QoS is set in the NGN functional entity. The resource allocation module, before the mobile node user sends and receives the message:
第一 QoS资源请求模块： 用于向 NGN功能实体发送 QoS资源分配请求； QoS资源分配模块：用于根据 NGN功能实体接收到的 QoS资源分配请求， 给所述移动节点用户分配 QoS资源。  The first QoS resource requesting module is configured to: send a QoS resource allocation request to the NGN functional entity; and the QoS resource allocation module is configured to allocate the QoS resource to the mobile node user according to the QoS resource allocation request received by the NGN functional entity.
本发明还提供一种多协议标签交换网络移动节点进行服务质量协商的 ***， 所述***包括： 移动节点用户的当前 LER7FA、 LER/RFA和 NGN功能 实体， 或者所述***包括： 移动节点用户的当前 LER/FA、 LER/GFA和 NGN 功能实体； 移动节点用户的当前 LER/FA中设置有第一 QoS资源请求模块， LER/RFA和 LER/GFA中设置有第二 QoS资源请求模块， NGN功能实体中设 置有 QoS资源分配模块； The present invention also provides a multi-protocol label switching network mobile node for performing quality of service negotiation, the system comprising: a current LER7FA, LER/RFA, and NGN functional entity of a mobile node user, or the system includes: a mobile node user The current LER/FA, LER/GFA, and NGN function entities; the first QoS resource request module is set in the current LER/FA of the mobile node user, and the second QoS resource request module is set in the LER/RFA and LER/GFA, and the NGN function is provided. In the entity Having a QoS resource allocation module;
基于 MPLS网络的移动节点用户在同一个 LER/RFA或标签边缘路由器 / 网关外地代理 LER/GFA管辖的区域中移动时：  When a mobile node user based on the MPLS network moves in the same LER/RFA or label edge router/gateway foreign agent LER/GFA jurisdiction:
第一 QoS资源请求模块： 用于向 NGN功能实体发送 QoS资源分配请求， 并将 NGN功能实体分配的 QoS资源发送至移动节点用户；  a first QoS resource requesting module: configured to send a QoS resource allocation request to the NGN functional entity, and send the QoS resource allocated by the NGN functional entity to the mobile node user;
第二 QoS资源请求模块： 用于向 NGN功能实体发送 QoS资源分配请求， 并将 NGN功能实体分配的 QoS资源发送至移动节点用户；  a second QoS resource requesting module: configured to send a QoS resource allocation request to the NGN functional entity, and send the QoS resource allocated by the NGN functional entity to the mobile node user;
QoS资源分配模块：用于根据 NGN功能实体接收到的 QoS资源分配请求， 给所述移动节点用户分配 QoS资源。  QoS resource allocation module: configured to allocate QoS resources to the mobile node user according to the QoS resource allocation request received by the NGN functional entity.
优选的， 所述***还包括： 移动节点用户的目标 LER/FA, 目标 LER/FA 中设置有第一 QoS协商模块；  Preferably, the system further includes: a target LER/FA of the mobile node user, where the first QoS negotiation module is set in the target LER/FA;
第一 QoS协商模块接收移动节点用户发送来的 QoS资源请求， 向移动节 点用户的当前 LER/FA发送 QoS协商请求， 与该当前 LER/FA中的第一 QoS资 源请求模块进行 QoS资源协商，第一 QoS资源请求模块向 NGN功能实体发送 QoS资源分配请求， QoS资源分配模块为所述移动节点用户分配相应的 QoS 资源， 并向第一 QoS资源请求模块返回 QoS资源分配响应， 第一 QoS资源请 求模块向第一 QoS协商模块返回 QoS协商响应， 第一 QoS协商模块向所述移 动节点用户返回 QoS资源响应。  The first QoS negotiation module receives the QoS resource request sent by the mobile node user, sends a QoS negotiation request to the current LER/FA of the mobile node user, and performs QoS resource negotiation with the first QoS resource request module in the current LER/FA, A QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, the QoS resource allocation module allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the first QoS resource requesting module, the first QoS resource request The module returns a QoS negotiation response to the first QoS negotiation module, and the first QoS negotiation module returns a QoS resource response to the mobile node user.
优选的， 所述***还包括： 移动节点用户的目标 LER/FA, 目标 LER/FA 中设置有第二 QoS协商模块；  Preferably, the system further includes: a target LER/FA of the mobile node user, and a second QoS negotiation module is set in the target LER/FA;
第二 QoS协商模块接收移动节点用户发送来的 QoS资源请求， 向所述 LER/RFA或 LER/GFA发送 QoS协商请求， 与 LER/RFA或 LER/GFA中的第二 QoS资源请求模块进行 QoS资源协商， 第二 QoS资源请求模块向 NGN功能实 体发送 QoS资源分配请求， QoS资源分配模块为所述移动节点用户分配相应 的 QoS资源， 并向第二 QoS资源请求模块返回 QoS资源分配响应， 第二 QoS 资源请求模块向第二 QoS协商模块返回 QoS协商响应， 第二 QoS协商模块向 所述移动节点用户返回 QoS资源响应。 The second QoS negotiation module receives the QoS resource request sent by the mobile node user, sends a QoS negotiation request to the LER/RFA or LER/GFA, and performs QoS resources with the second QoS resource request module in the LER/RFA or LER/GFA. Negotiating, the second QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, the QoS resource allocation module allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the second QoS resource requesting module, and second The QoS resource requesting module returns a QoS negotiation response to the second QoS negotiation module, and the second QoS negotiation module The mobile node user returns a QoS resource response.
由上述本发明提供的技术方案可以看出， 本发明针对基于 MPLS网络 的移动节点用户在发送和接收报文之前和 Y.mpls-mob中描述的三种网络移 动模型， 提出了基于 MPLS网络的移动节点用户进行 QoS协商的方案。 可 以推动运营商开展具有 QoS保证的 NGN业务。 附图简要说明  It can be seen from the above technical solution provided by the present invention that the present invention is directed to an MPLS network-based mobile network node based on three network mobility models described in the Y.mpls-mob before sending and receiving a message. A scheme in which a mobile node user performs QoS negotiation. It can promote operators to carry out NGN services with QoS guarantee. BRIEF DESCRIPTION OF THE DRAWINGS
图 1为 Y.mpls-mob标准草案中提出了三种不同的网络层次的移动模型 示意图；  Figure 1 shows a schematic diagram of three different network-level mobility models in the Y.mpls-mob draft standard;
图 2为基于 MPLS网络的移动节点在发送和接收报文之前， 本发明所述 移动节点用户进行 QoS协商的方法的实施例的处理流程图；  2 is a processing flowchart of an embodiment of a method for performing QoS negotiation by a mobile node user according to the present invention before a mobile node sends and receives a message according to an MPLS network;
图 3为针对 inter-access网络移动模型， 在 LSP路径扩展过程中， 本发明 提出的移动节点用户进行 QoS协商的方法的实施例的处理流程图；  FIG. 3 is a flowchart of an embodiment of a method for performing QoS negotiation by a mobile node user according to the present invention, in an LSP path extension process;
图 4为针对 inter-access网络移动模型， 在 LSP路径优化过程中， 本发明 提出的移动节点用户进行 QoS协商的方法的实施例的处理流程图；  FIG. 4 is a flowchart of a process of an embodiment of a method for performing QoS negotiation by a mobile node user in the LSP path optimization process for an inter-access network mobility model;
图 5为针对 inter-network网络移动模型，在 LSP路径优化过程中， 本发明 提出的移动节点用户进行 QoS协商的方法的实施例的处理流程图。 实施本发明的方式  FIG. 5 is a flowchart of a process of an embodiment of a method for performing QoS negotiation by a mobile node user in the LSP path optimization process for an inter-network network mobility model. Mode for carrying out the invention
本发明描述了基于 MPLS网络的移动节点在发送和接收报文之前，和针 对上述 Y.mpls-mob中描述的三种网络移动模型，分别提出了四种 MPLS网络 移动节点用户进行 QoS协商的方法和流程。  The present invention describes a method for QoS negotiation of four MPLS network mobile node users before the mobile node based on the MPLS network sends and receives messages, and for the three network mobility models described in the above Y.mpls-mob. And process.
下面结合附图来详细描述本发明所述方法，本发明提出的基于 MPLS网 络的移动节点在发送和接收报文之前，进行 QoS协商的方法的实施例的处理 流程如图 2所示。 包括如下步骤：  The process of the present invention is described in detail below with reference to the accompanying drawings. The processing flow of the embodiment of the method for performing QoS negotiation by the MPLS network-based mobile node before sending and receiving a message is shown in FIG. 2 . Including the following steps:
步骤 21、 移动节点用户在发送和接收报文之前， 向其当前区域的当前 LER/FA (标签边缘路由器 /外地代理）发送 QoS资源请求， 该请求中携带带 宽、 时延等 QoS参数。 Step 21: The mobile node user sends a current message to the current area before sending and receiving the message The LER/FA (Label Edge Router/Foreign Agent) sends a QoS resource request, which carries QoS parameters such as bandwidth and delay.
步骤 22、所述当前 LER/FA接收到移动节点用户发送的 QoS资源请求后， 向 NGN功能实体发送 QoS资源分配请求， 该请求中携带所述 QoS参数。  Step 22: After receiving the QoS resource request sent by the mobile node user, the current LER/FA sends a QoS resource allocation request to the NGN function entity, where the request carries the QoS parameter.
步骤 23、 NGN功能实体主要完成访问控制功能， 根据接收到的 QoS资 源分配请求中携带的 QoS参数，通过 SLA (Service Level Agreement,服务等 级协议）分配功能， 对所述移动节点用户预留和分配 QoS资源， 然后， 向所 述当前 LER/FA发送 QoS资源分配响应。  Step 23: The NGN function entity mainly completes the access control function, and reserves and allocates the mobile node user by using an SLA (Service Level Agreement) allocation function according to the QoS parameter carried in the received QoS resource allocation request. The QoS resource, then, sends a QoS resource allocation response to the current LER/FA.
步骤 24、 所述当前 LER7FA接收到 NGN功能实体发送的 QoS资源分配响 应后， 向所述移动节点用户发送 QoS资源响应。  Step 24: After receiving the QoS resource allocation response sent by the NGN function entity, the current LER7FA sends a QoS resource response to the mobile node user.
所述移动节点用户接收到 QoS资源响应后， 便可以利用 NGN功能实体 分配的 QoS资源， 对各种用户业务进行 QoS服务。  After receiving the QoS resource response, the mobile node user can use the QoS resources allocated by the NGN functional entity to perform QoS service on various user services.
针对上述 intm-access网络移动模型， 本发明提出的基于 MPLS网络的移 动节点进行 QoS协商的方法的描述如下：  For the above intm-access network mobility model, the MPLS network-based mobile node proposed by the present invention performs QoS negotiation as follows:
在该网络移动模型中， 移动节点用户的移动范围局限在同一个 LER/FA 管辖的区域中， 移动节点用户在完成切换后， 不必建立新的 LSP路径和向 LER/FA重新发送 QoS资源申请请求， 移动节点用户继续使用已经分配给自 己的 QoS资源。  In the network mobility model, the mobile node user's mobile range is limited to the same LER/FA jurisdictional area. After completing the handover, the mobile node user does not have to establish a new LSP path and resend the QoS resource request request to the LER/FA. The mobile node user continues to use the QoS resources that have been assigned to itself.
针对上述 inter-access网络移动模型，移动节点用户的移动范围局限在同 一 LER/RFA (区域外地代理）管辖的区域中，但不属于同一 LER/FA。所以， 移动节点用户在完成切换、 移动到新的网络区域后， 可能会受到新网络区 域资源的限制， 暂时满足不了实际应用需要， 而引起 QoS服务质量下降。此 时为保证移动节点用户业务不被中断，移动节点用户需要进行 QoS服务质量 的重新协商， 向 LER/FA重新发送资源申请，并向 CN节点用户发送绑定更新 请求建立新的 LSP优化路径。  For the above-mentioned inter-access network mobility model, the mobile node user's mobile range is limited to the same LER/RFA (regional foreign agent) jurisdiction, but does not belong to the same LER/FA. Therefore, after the mobile node user completes the handover and moves to the new network area, it may be restricted by the resources of the new network area, which temporarily fails to meet the actual application requirements, and causes the QoS service quality to deteriorate. In order to ensure that the mobile node user service is not interrupted, the mobile node user needs to renegotiate the QoS quality of service, resend the resource request to the LER/FA, and send a binding update request to the CN node user to establish a new LSP optimization path.
移动节点用户从开始移动到新的 LSP路径建立过程，一般需要经过两个 流程： LSP (标记交换路径） 路径扩展和 LSP路径优化。 LSP路径扩展流程 是指移动节点用户将新的 CoA (转交地址） 向 LER/HA (标签边缘路由器 / 家乡代理）注册的过程， 在该过程中， 新旧 LER/FA (标签边缘路由器 /外地 代理）之间建立双向 LSP路径， 用于移动节点用户和 CN节点间的通信。 LSP 路径优化流程是指移动节点用户移动到新的区域后， 为了减少传输时延， 更有效地利用***资源， 与通信节点用户之间建立新的 LSP路径的过程。 The mobile node user moves from the beginning to the new LSP path establishment process, generally needs to go through two Process: LSP (label switched path) path extension and LSP path optimization. The LSP path extension process refers to the process in which a mobile node user registers a new CoA (care-of address) with LER/HA (label edge router/home agent). In the process, new and old LER/FA (label edge router/foreign agent) A bidirectional LSP path is established between the mobile node user and the CN node. The LSP path optimization process refers to the process of establishing a new LSP path with the communication node user in order to reduce the transmission delay and more effectively utilize the system resources after the mobile node user moves to the new area.
在上述 LSP路径扩展过程中， 本发明提出的基于 MPLS网络的移动节点 进行 QoS协商的方法的实施例的处理流程如图 3， 包括如下步骤：  In the foregoing LSP path expansion process, the processing flow of the embodiment of the MPLS network-based mobile node performing QoS negotiation according to the present invention is as shown in FIG. 3, and includes the following steps:
步骤 31、 基于 MPLS网络的移动节点用户向其目标区域的目标 LER/FA 发送注册请求。 该移动请求中携带移动节点用户的新的 CoA信息。  Step 31: The mobile node user based on the MPLS network sends a registration request to the target LER/FA of the target area. The mobile request carries new CoA information of the mobile node user.
步骤 32、 移动节点用户向所述目标 LER/FA发送了注册请求后， 又向该 目标 LER/FA发送 QoS资源请求， 该请求中携带带宽、 时延等 QoS参数。  Step 32: After the mobile node user sends a registration request to the target LER/FA, it sends a QoS resource request to the target LER/FA, where the request carries QoS parameters such as bandwidth and delay.
步骤 33、 所述目标 LER/FA将接收到的注册请求转交给所述移动节点用 户的 LER/HA (家乡代理） 。  Step 33: The target LER/FA forwards the received registration request to the LER/HA (home agent) of the mobile node user.
步骤 34、所述目标 LER/FA向移动节点用户的当前 LER/FA发送 QoS协商 请求， 目标 LER/FA与当前 LER/FA之间进行 QoS资源协商。  Step 34: The target LER/FA sends a QoS negotiation request to the current LER/FA of the mobile node user, and the QoS resource negotiation between the target LER/FA and the current LER/FA.
步骤 35、 所述当前 LER/FA向 NGN功能实体发送 QoS资源分配请求。 步骤 36、 NGN根据接收到的 QoS资源分配请求中携带的 QoS参数，通过 SLA分配功能， 对所述移动节点用户预留和分配 QoS资源， 然后， 向所述当 前 LER/FA发送 QoS资源分配响应。  Step 35: The current LER/FA sends a QoS resource allocation request to the NGN functional entity. Step 36: The NGN reserves and allocates QoS resources to the mobile node user by using an SLA allocation function according to the QoS parameters carried in the received QoS resource allocation request, and then sends a QoS resource allocation response to the current LER/FA. .
步骤 37、 所述当前 LER/FA接收到 NGN功能实体发送的 QoS资源分配响 应后， 向所述目标 LER/FA发送 QoS协商响应。 '  Step 37: After receiving the QoS resource allocation response sent by the NGN function entity, the current LER/FA sends a QoS negotiation response to the target LER/FA. '
步骤 38、所述目标 LER/FA接收到所述当前 LER/FA发送的 QoS资源协商 响应后， 向所述移动节点用户发送 QoS资源响应。  Step 38: After receiving the QoS resource negotiation response sent by the current LER/FA, the target LER/FA sends a QoS resource response to the mobile node user.
步骤 39、 所述 LER/HA向所述目标 LER/FA发送注册响应。  Step 39: The LER/HA sends a registration response to the target LER/FA.
步骤 310、 所述目标 LER/FA向所述移动节点用户发送注册响应。 所述移动节点用户接收到 QoS资源响应后， 便可以利用 NGN功能实体 分配的 QoS资源，在上述 LSP路径扩展过程中对各种用户业务进行 QoS服务。 Step 310: The target LER/FA sends a registration response to the mobile node user. After receiving the QoS resource response, the mobile node user may use the QoS resources allocated by the NGN function entity to perform QoS service on various user services in the LSP path extension process.
在上述 LSP路径优化过程中， 本发明提出的基于 MPLS网络的移动节点 进行 QoS协商的方法的实施例的处理流程如图 4， 包括如下步骤：  In the foregoing LSP path optimization process, the processing flow of the embodiment of the MPLS network-based mobile node QoS negotiation method proposed by the present invention is as shown in FIG. 4, and includes the following steps:
步骤 41、 基于 MPLS网络的移动节点用户向其目标区域的目标 LER/FA 发送绑定请求。  Step 41: The mobile node user based on the MPLS network sends a binding request to the target LER/FA of the target area.
步骤 42、 目标 LER/FA将接收到的绑定请求转交给 CN (核心网络） 。 步骤 43、 移动节点用户向目标 LER/FA发送 QoS资源请求， 该请求中携 带带宽、 时延等 QoS参数。  Step 42: The target LER/FA forwards the received binding request to the CN (Core Network). Step 43: The mobile node user sends a QoS resource request to the target LER/FA, where the request carries QoS parameters such as bandwidth and delay.
步骤 44、 所述目标 LER/FA向移动节点用户的 LER/RFA发送 QoS协商请 求， 目标 LER/FA与 LER/RJF A之间进行 QoS资源协商。  Step 44: The target LER/FA sends a QoS negotiation request to the LER/RFA of the mobile node user, and performs QoS resource negotiation between the target LER/FA and the LER/RJF A.
步骤 45、 所述 LER/RFA向 NGN功能实体发送 QoS资源分配请求。  Step 45: The LER/RFA sends a QoS resource allocation request to the NGN functional entity.
步骤 46、 NGN根据接收到的 QoS资源分配请求中携带的 QoS参数，通过 SLA分配功能， 对所述移动节点用户预留和分配 QoS资源， 然后， 向所述当 前 LER/RFA发送 QoS资源分配响应。  Step 46: The NGN reserves and allocates QoS resources to the mobile node user by using an SLA allocation function according to the QoS parameters carried in the received QoS resource allocation request, and then sends a QoS resource allocation response to the current LER/RFA. .
步骤 47、 所述 LER/RFA接收到 NGN功能实体发送的 QoS资源分配响应 后， 向所述目标 LER/FA发送 QoS协商响应。  Step 47: After receiving the QoS resource allocation response sent by the NGN function entity, the LER/RFA sends a QoS negotiation response to the target LER/FA.
步骤 48、 所述目标 LER/FA接收到所述 LER7RFA发送的 QoS资源协商响 应后， 向所述移动节点用户发送 QoS资源响应。  Step 48: After receiving the QoS resource negotiation response sent by the LER7RFA, the target LER/FA sends a QoS resource response to the mobile node user.
所述移动节点用户接收到 QoS资源响应后， 便可以利用 NGN功能实体 分配的 QoS资源，在上述 LSP路径优化过程中对各种用户业务进行 QoS服务。  After receiving the QoS resource response, the mobile node user can utilize the QoS resources allocated by the NGN functional entity to perform QoS service on various user services in the LSP path optimization process.
针对上述 inter-network网络移动模型， 移动节点用户的移动范围局限在 同一 LER/GFA (网关外地代理）管辖的不同 LER/RPA管辖的区域中， 所以， 移动节点用户在完成切换、移动到新的网络区域后， 和上述 inter-access网络 移动模型一样，移动节点用户需要进行 QoS服务质量的重新协商，向 LER/FA 重新发送资源申请， 并向 CN节点用户发送绑定更新请求建立新的 LSP优化 路径。 移动节点用户从开始移动到新的 LSP路径建立过程也包括 LSP路径扩 展和 LSP路径优化两个过程。 For the above-mentioned inter-network network mobility model, the mobile node user's mobile range is limited to different LER/RPA-administered areas under the same LER/GFA (Gateway Foreign Agent), so the mobile node user completes the handover and moves to the new one. After the network area, like the above-mentioned inter-access network mobility model, the mobile node user needs to renegotiate the QoS quality of service, resend the resource request to the LER/FA, and send a binding update request to the CN node user to establish a new LSP optimization. Path. The mobile node user moves from the beginning to the new LSP path establishment process and also includes two processes of LSP path extension and LSP path optimization.
在上述 LSP路径扩展过程中， 本发明提出的基于 MPLS网络的移动节点 进行 QoS协商的方法和上述 inter-access网络移动模型中的方法一样。  In the above LSP path expansion process, the MPLS network-based mobile node proposed by the present invention performs the QoS negotiation method in the same manner as the above-described inter-access network mobility model.
在上述 LSP路径优化过程中， 本发明提出的基于 MPLS网络的移动节点 进行 QoS协商的方法的实施例的处理流程如图 5所示， 包括如下步骤：  In the above LSP path optimization process, the processing flow of the embodiment of the MPLS network-based mobile node QoS negotiation method is as shown in FIG. 5, and includes the following steps:
步骤 51、 基于 MPLS网络的移动节点用户向其目标区域的目标 LER/FA 发送绑定请求。  Step 51: The mobile node user based on the MPLS network sends a binding request to the target LER/FA of the target area.
步骤 52、 目标 LER/FA将接收到的绑定请求转交给 CN (核心网络） 。 步骤 53、 移动节点用户向目标 LER/FA发送 QoS资源请求， 该请求中携 带带宽、 时延等 QoS参数。  Step 52: The target LER/FA forwards the received binding request to the CN (Core Network). Step 53: The mobile node user sends a QoS resource request to the target LER/FA, where the request carries QoS parameters such as bandwidth and delay.
步骤 54、 所述目标 LER/FA向移动节点用户的 LER/GFA发送 QoS协商请 求， 目标 LER/FA与 LER/GF A之间进行 QoS资源协商。  Step 54: The target LER/FA sends a QoS negotiation request to the LER/GFA of the mobile node user, and performs QoS resource negotiation between the target LER/FA and the LER/GF A.
步骤 55、 所述 LER/GFA向 NGN功能实体发送 QoS资源分配请求。  Step 55: The LER/GFA sends a QoS resource allocation request to the NGN functional entity.
步骤 56、 NGN根据接收到的 QoS资源分配请求中携带的 QoS参数，通过 SLA分配功能， 对所述移动节点用户预留和分配 QoS资源， 然后， 向所述当 前 LER/GFA发送 QoS资源分配响应。  Step 56: The NGN reserves and allocates QoS resources to the mobile node user by using an SLA allocation function according to the QoS parameters carried in the received QoS resource allocation request, and then sends a QoS resource allocation response to the current LER/GFA. .
步骤 57、 所述 LER/GFA接收到 NGN功能实体发送的 QoS资源分配响应 后， 向所述目标 LER/FA发送 QoS协商响应。  Step 57: After receiving the QoS resource allocation response sent by the NGN function entity, the LER/GFA sends a QoS negotiation response to the target LER/FA.
步骤 58、 所述目标 LER/FA接收到所述 LER/GFA发送的 QoS资源协商响 应后， 向所述移动节点用户发送 QoS资源响应。  Step 58: After receiving the QoS resource negotiation response sent by the LER/GFA, the target LER/FA sends a QoS resource response to the mobile node user.
所述移动节点用户接收到 QoS资源'响应后， 便可以利用 NGN功能实体 分配的 QoS资源，在上述 LSP路径优化过程中对各种用户业务进行 QoS服务。  After receiving the QoS resource response, the mobile node user can utilize the QoS resources allocated by the NGN functional entity to perform QoS service for various user services in the LSP path optimization process.
在移动节点用户发送和接收报文之前， 实现 MPLS网络移动节点服务质 量协商时， 本发明提供的多协议标签交换网络移动节点进行服务质量协商 的***包括： LER7FA和 NGN功能实体， 其中， LER/FA中设置有第一 QoS 资源请求模块， NGN功能实体中设置有第一 QoS资源分配模块。 在移动节点用户发送和接收报文之前， 移动节点用户向 LER/FA发送 QoS资源请求， QoS资源请求中携带有 QoS参数。 The system for negotiating the quality of service of the multi-protocol label switching network mobile node provided by the present invention includes: LER7FA and NGN functional entities, where LER/ is implemented before the mobile node user sends and receives the message. The first QoS is set in the FA The resource requesting module is provided with a first QoS resource allocation module in the NGN functional entity. Before the mobile node user sends and receives the message, the mobile node user sends a QoS resource request to the LER/FA, and the QoS resource request carries the QoS parameter.
向 NGN功能实体发送 QoS资源分配请求， 该请求中携带所述 QoS参数： 第一 QoS资源请求模块在 LER/F A接收到 QoS资源请求后， 向 NGN功能 实体发送 QoS资源分配请求， QoS资源分配请求中携带有 QoS参数。  Sending a QoS resource allocation request to the NGN functional entity, where the request carries the QoS parameter: After the LER/FA receives the QoS resource request, the first QoS resource requesting module sends a QoS resource allocation request, a QoS resource allocation request, to the NGN functional entity. It carries QoS parameters.
QoS资源分配模块根据 NGN功能实体接收到的 QoS资源分配请求，通过 SLA分配功能对移动节点用户预留和分配 QoS资源， 并向 LER/FA返回 QoS 资源分配响应。第一 QoS资源请求模块接收到 QoS资源分配响应后， 向移动 节点用户返回 QoS资源响应。 具体如上述方法中的描述。  The QoS resource allocation module reserves and allocates QoS resources to the mobile node user through the SLA allocation function according to the QoS resource allocation request received by the NGN functional entity, and returns a QoS resource allocation response to the LER/FA. After receiving the QoS resource allocation response, the first QoS resource requesting module returns a QoS resource response to the mobile node user. Specifically, it is described in the above method.
在基于 MPLS网络的移动节点用户在同一个 LER/RFA或标签边缘路由 器 /网关外地代理 LER/GFA管辖的区域中移动时， 实现 MPLS网络移动节点 服务质量协商的***包括： 移动节点用户的当前 LER FA、 目标 LER/FA、 LER/RJFA和 NGN功能实体， 或者所述***包括： 移动节点用户的当前 LER/FA. 目标 LER/FA、 LER/GFA和 NGN功能实体。  When the mobile node user based on the MPLS network moves in the same LER/RFA or label edge router/gateway foreign agent LER/GFA jurisdiction, the system for implementing the MPLS network mobile node quality of service negotiation includes: the current LER FA of the mobile node user The target LER/FA, LER/RJFA, and NGN functional entities, or the system includes: a current LER/FA. Target LER/FA, LER/GFA, and NGN functional entity of the mobile node user.
当前 LER/FA中设置有第一 QoS资源请求模块， 目标 LER/FA中设置有第 一 QoS协商模块和第二 QoS协商模块， LER/RFA和 LER/GFA中均设置有第二 QoS资源请求模块， NGN功能实体中设置有 QoS资源分配模块。  The first QoS resource requesting module is set in the current LER/FA, the first QoS negotiation module and the second QoS negotiation module are set in the target LER/FA, and the second QoS resource requesting module is set in the LER/RFA and the LER/GFA. The QoS resource allocation module is set in the NGN functional entity.
在 LSP路径扩展过程中， 第一 QoS协商模块接收移动节点用户发送来的 QoS资源请求， 该 QoS资源请求中携带有 QoS参数， 第一 QoS协商模块向移 动节点用户的当前 LER/FA发送 QoS协商请求， 与该当前 LER7FA中的第一 QoS资源请求模块进行 QoS资源协商， 然后， 第一 QoS资源请求模块向 NGN 功能实体发送 QoS资源分配请求， 该 QoS资源分配请求中携带有 QoS参数， QoS资源分配模块根据 QoS资源分配请求中携带的 QoS参数， 通过 SLA分配 功能为移动节点用户分配相应的 QoS资源， 并向第一 QoS资源请求模块返回 QoS资源分配响应， 第一 QoS资源请求模块向第一 QoS协商模块返回 QoS协 商响应， 第一 QoS协商模块向移动节点用户返回 QoS资源响应。 移动节点用 户接收到 QoS资源响应后， 便可以利用 NGN功能实体分配的 QoS资源， 在 LSP路径扩展过程中为各种用户业务提供 QoS服务。 具体如上述方法中的描 述。 In the LSP path extension process, the first QoS negotiation module receives a QoS resource request sent by the mobile node user, where the QoS resource request carries a QoS parameter, and the first QoS negotiation module sends a QoS negotiation to the current LER/FA of the mobile node user. Requesting, performing QoS resource negotiation with the first QoS resource requesting module in the current LER7FA, and then the first QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, where the QoS resource allocation request carries the QoS parameter, the QoS resource The allocation module allocates a corresponding QoS resource to the mobile node user by using the SLA allocation function according to the QoS parameter carried in the QoS resource allocation request, and returns a QoS resource allocation response to the first QoS resource requesting module, where the first QoS resource requesting module is first. QoS negotiation module returns QoS association In response, the first QoS negotiation module returns a QoS resource response to the mobile node user. After receiving the QoS resource response, the mobile node user can use the QoS resources allocated by the NGN functional entity to provide QoS services for various user services in the LSP path extension process. Specifically, it is described in the above method.
在 LSP路径优化过程中， 第二 QoS协商模块接收移动节点用户发送来的 QoS资源请求， 该 QoS资源请求中携带有 QoS参数， 第二 QoS协商模块向 LER/RFA或 LER/GFA发送 QoS协商请求， 与 LER/RFA或 LER/GFA中的第二 QoS资源请求模块进行 QoS资源协商， 然后， 第二 QoS资源请求模块向 NGN 功能实体发送 QoS资源分配请求， 该 QoS资源分配请求中携带有 QoS参数， QoS资源分配模块根据 QoS资源分配请求中携带的 QoS参数， 通过 SLA分配 功能为移动节点用户分配相应的 QoS资源， 并向第二 QoS资源请求模块返回 QoS资源分配响应， 第二 QoS资源请求模块向第二 QoS协商模块返回 QoS协 商响应， 第二 QoS协商模块向移动节点用户返回 QoS资源响应。 移动节点用 户接收到 QoS资源响应后， 便可以利用 NGN功能实体分配的 QoS资源， 在 LSP路径优化过程中为各种用户业务提供 QoS服务。 具体如上述方法中的描 述。  In the LSP path optimization process, the second QoS negotiation module receives the QoS resource request sent by the mobile node user, where the QoS resource request carries the QoS parameter, and the second QoS negotiation module sends the QoS negotiation request to the LER/RFA or the LER/GFA. And performing QoS resource negotiation with the second QoS resource requesting module in the LER/RFA or LER/GFA, and then the second QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, where the QoS resource allocation request carries the QoS parameter The QoS resource allocation module allocates a corresponding QoS resource to the mobile node user by using the SLA allocation function according to the QoS parameter carried in the QoS resource allocation request, and returns a QoS resource allocation response to the second QoS resource requesting module, and the second QoS resource requesting module Returning a QoS negotiation response to the second QoS negotiation module, and the second QoS negotiation module returns a QoS resource response to the mobile node user. After receiving the QoS resource response, the mobile node user can use the QoS resources allocated by the NGN functional entity to provide QoS services for various user services in the LSP path optimization process. Specifically, it is described in the above method.
以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围并 不局限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想到的变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本 发明的保护范围应该以权利要求的保护范围为准。  The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

权利要求 Rights request
1、 一种多协议标签交换网络移动节点进行服务质量协商的方法， 其特 征在于， 包括步骤：  A method for multi-protocol label switching network mobile node to negotiate quality of service, the method comprising the steps of:
A、基于多协议标签交换 MPLS网络的移动节点用户在发送和接收报文之 前，通过该移动节点用户的标签边缘路由器 /外地代理 LER/FA向下一代网络 NGN功能实体发送服务质量 QoS资源分配请求；  A. A mobile node user based on a multi-protocol label switching MPLS network sends a quality of service QoS resource allocation request to a next-generation network NGN functional entity through a label edge router/foreign agent LER/FA of the mobile node user before transmitting and receiving a message. ;
B、 所述 NGN功能实体根据接收到的所述 QoS资源分配请求， 给所述移 动节点用户分配 QoS资源。  B. The NGN function entity allocates a QoS resource to the mobile node user according to the received QoS resource allocation request.
2、 根据权利要求 1所述的方法， 其特征在于， 所述的步骤 A具体包括： Al、 基于 MPLS网络的移动节点用户在发送和接收报文之前， 向该移动 节点用户的 LER/FA发送 QoS资源请求， 该请求中携带相应的 QoS参数； The method according to claim 1, wherein the step A specifically includes: Al, the MPLS network-based mobile node user sends the LER/FA to the mobile node user before sending and receiving the message. a QoS resource request, where the request carries a corresponding QoS parameter;
A2、 所述 LER/FA接收到所述 QoS资源请求后， 向所述 NGN功能实体发 送携带有 QoS参数的 QoS资源分配请求。 A2: After receiving the QoS resource request, the LER/FA sends a QoS resource allocation request carrying the QoS parameter to the NGN function entity.
3、根据权利要求 1或 2所述的方法，其特征在于，所述的步骤 B具体包括： Bl、 所述 NGN功能实体接收到所述 QoS资源分配请求后， 根据 QoS资源 分配请求中承载的 QoS参数给所述移动节点用户分配相应的 QoS资源， 向所 述 LER/FA返回 QoS分配响应；  The method according to claim 1 or 2, wherein the step B specifically includes: Bl, after the NG resource function receives the QoS resource allocation request, according to the QoS resource allocation request The QoS parameter allocates a corresponding QoS resource to the mobile node user, and returns a QoS allocation response to the LER/FA;
B2、 所述 LER/FA接收到所述 QoS分配响应后， 向所述移动节点用户返 回 QoS资源响应。  B2: After receiving the QoS allocation response, the LER/FA returns a QoS resource response to the mobile node user.
4、 根据权利要求 3所述的方法， 其特征在于， 所述的步骤 B还包括： 所述移动节点用户接收到所述 QoS资源响应后， 利用所述 NGN功能实体 分配的 QoS资源， 对各种用户业务进行 QoS服务。  The method according to claim 3, wherein the step B further comprises: after receiving the QoS resource response, the mobile node user uses the QoS resource allocated by the NGN function entity, A kind of user service performs QoS service.
5、 一种多协议标签交换网络移动节点进行服务质量协商的方法， 其特 征在于，基于 MPLS网络的移动节点用户在同一个标签边缘路由器 /区域外地 代理 LER/RFA或标签边缘路由器 /网关外地代理 LER7GFA管辖的区域中移 动时， 所述方法包括步骤： C、移动节点用户通过其当前 LER/FA向 NGN功能实体发送 QoS资源分配 请求， 并通过其当前 LER/FA接受 NGN功能实体分配的 QoS资源； 和 /或A multi-protocol label switching network mobile node performing quality of service negotiation method, characterized in that a mobile node user based on an MPLS network is in the same label edge router/area foreign agent LER/RFA or a label edge router/gateway foreign agent When moving in an area governed by LER7GFA, the method includes the steps of: C. The mobile node user sends a QoS resource allocation request to the NGN functional entity through its current LER/FA, and accepts the QoS resource allocated by the NGN functional entity through its current LER/FA; and/or
D、 移动节点用户通过所述 LE /RPA或 LER/GFA向 NGN功能实体发送 QoS资源分配请求， 并通过 LER/RPA或 LER/GFA接受 NGN功能实体分配的 QoS资源。 D. The mobile node user sends a QoS resource allocation request to the NGN functional entity through the LE/RPA or LER/GFA, and accepts the QoS resource allocated by the NGN functional entity through the LER/RPA or the LER/GFA.
6、 根据权利要求 5所述的方法， 其特征在于， 所述的步骤 C具体包括： C1、所述移动节点用户向其目标 LER/FA发送 QoS资源请求，目标 LER/FA 接收到该请求后， 向移动节点用户的当前 LER/FA发送 QoS协商请求， 所述 目标 LER/FA与所述当前 LER/FA之间进行 QoS资源协商， 然后， 所述当前 LER/FA向 NGN功能实体发送 QoS资源分配请求；  The method according to claim 5, wherein the step C specifically includes: C1, the mobile node user sends a QoS resource request to its target LER/FA, and after the target LER/FA receives the request, Sending a QoS negotiation request to the current LER/FA of the mobile node user, performing QoS resource negotiation between the target LER/FA and the current LER/FA, and then sending the QoS resource to the NGN functional entity by the current LER/FA Assign a request;
C2、所述 NGN功能实体接收到所述 QoS资源分配请求后， 给所述移动节 点用户分配相应的 QoS资源， 向所述当前 LER/FA返回 QoS资源分配响应， 所述当前 LER/FA向所述目标 LER/FA返回 QoS协商响应， 所述目标 LER/FA 向所述移动节点用户返回 QoS资源响应。  After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the current LER/FA, where the current LER/FA is located. The target LER/FA returns a QoS negotiation response, and the target LER/FA returns a QoS resource response to the mobile node user.
7、 根据权利要求 6所述的方法， 其特征在于， 所述的步骤 C还包括： 所述移动节点用户接收到所述 QoS资源响应后， 利用所述 NGN功能实体 分配的 QoS资源， 对各种用户业务进行 QoS服务。  The method according to claim 6, wherein the step C further comprises: after receiving the QoS resource response, the mobile node user uses the QoS resources allocated by the NGN functional entity, A kind of user service performs QoS service.
8、 根据权利要求 5所述的方法， 其特征在于， 所述的步骤 D具体包括： Dl、 所述移动节点用户向其目标 LER/FA发送 QoS资源请求， 目标 The method according to claim 5, wherein the step D specifically includes: D1, the mobile node user sends a QoS resource request to its target LER/FA, and the target
LER/FA接收到该请求后， 向所述 LER/RFA或 LER/GFA发送 QoS协商请求， 所述 LER/RFA或 LER/GFA与所述目标 LER/FA之间进行 QoS资源协商， 然 后， 所述 LER/RJFA或 LER/GFA向 NGN功能实体发送 QoS资源分配请求；After receiving the request, the LER/FA sends a QoS negotiation request to the LER/RFA or LER/GFA, and the LER/RFA or LER/GFA performs QoS resource negotiation with the target LER/FA, and then, The LER/RJFA or LER/GFA sends a QoS resource allocation request to the NGN functional entity;
D2、所述 NGN功能实体接收到所述 QoS资源分配请求后， 给所述移动节 点用户分配相应的 QoS资源，向所述 LER/RFA或 LER/GFA返回 QoS资源分配 响应， 所述 LER/RFA或 LER/GFA向所述目标 LER7FA返回 QoS协商响应， 所 述目标 LER/FA向所述移动节点用户返回 QoS资源响应。 D2. After receiving the QoS resource allocation request, the NGN function entity allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the LER/RFA or LER/GFA, where the LER/RFA Or the LER/GFA returns a QoS negotiation response to the target LER7FA, and the target LER/FA returns a QoS resource response to the mobile node user.
9、 根据权利要求 8所述的方法， 其特征在于， 所述的步骤 D还包括： 所述移动节点用户接收到所述 QoS资源响应后， 利用所述 NGN功能实体 分配的 QoS资源， 对各种用户业务进行 QoS服务。 The method according to claim 8, wherein the step D further comprises: after receiving the QoS resource response, the mobile node user uses the QoS resources allocated by the NGN function entity, A kind of user service performs QoS service.
10、 根据权利要求 5所述的方法， 其特征在于， 还包括：  10. The method according to claim 5, further comprising:
基于 MPLS网络的移动节点用户在同一个 LER/FA管辖的区域中移动时， 移动节点用户继续使用已经分配给自己的 QoS资源。  When a mobile node user based on an MPLS network moves in the same LER/FA jurisdiction, the mobile node user continues to use the QoS resources already allocated to itself.
11、 一种多协议标签交换网络移动节点进行服务质量协商的***， 其特 征在于，包括： LER/FA和 NGN功能实体， LER/FA中设置有 QoS资源请求模 块， NGN功能实体中设置有第一 QoS资源分配模块， 在移动节点用户发送 和接收报文之前：  A multi-protocol label switching network mobile node performing a quality of service negotiation system, comprising: a LER/FA and an NGN functional entity, a QoS resource requesting module is set in the LER/FA, and a NGN functional entity is provided in the first A QoS resource allocation module, before the mobile node user sends and receives a message:
第一 QoS资源请求模块： 用于向 NGN功能实体发送 QoS资源分配请求； QoS资源分配模块：用于根据 NGN功能实体接收到的 QoS资源分配请求， 给所述移动节点用户分配 QoS资源。  The first QoS resource requesting module is configured to: send a QoS resource allocation request to the NGN functional entity; and the QoS resource allocation module is configured to allocate the QoS resource to the mobile node user according to the QoS resource allocation request received by the NGN functional entity.
12、 一种多协议标签交换网络移动节点进行服务质量协商的***， 其特 征在于， 所述***包括： 移动节点用户的当前 LER/FA、 LER/RFA和 NGN功 能实体，或者所述***包括：移动节点用户的当前 LER/FA、LER/GFA和 NGN 功能实体； 移动节点用户的当前 LER/FA中设置有第一 QoS资源请求模块， LER/RFA和 LER/GFA中设置有第二 QoS资源请求模块， NGN功能实体中设 置有 QoS资源分配模块；  12. A system for multi-protocol label switching network mobile node to perform quality of service negotiation, the system comprising: a current LER/FA, LER/RFA, and NGN functional entity of a mobile node user, or the system includes: The current LER/FA, LER/GFA, and NGN function entities of the mobile node user; the first QoS resource request module is set in the current LER/FA of the mobile node user, and the second QoS resource request is set in the LER/RFA and the LER/GFA a module, a QoS resource allocation module is set in the NGN functional entity;
基于 MPLS网络的移动节点用户在同一个 LER/RFA或标签边缘路由器 / 网关外地代理 LER/GFA管辖的区域中移动时：  When a mobile node user based on the MPLS network moves in the same LER/RFA or label edge router/gateway foreign agent LER/GFA jurisdiction:
第一 QoS资源请求模块： 用于向 NGN功能实体发送 QoS资源分配请求， 并将 NGN功能实体分配的 QoS资源发送至移动节点用户；  a first QoS resource requesting module: configured to send a QoS resource allocation request to the NGN functional entity, and send the QoS resource allocated by the NGN functional entity to the mobile node user;
第二 QoS资源请求模块： 用于向 NGN功能实体发送 QoS资源分配请求， 并将 NGN功能实体分配的 QoS资源发送至移动节点用户；  a second QoS resource requesting module: configured to send a QoS resource allocation request to the NGN functional entity, and send the QoS resource allocated by the NGN functional entity to the mobile node user;
QoS资源分配模块：用于根据 NGN功能实体接收到的 QoS资源分配请求， 给所述移动节点用户分配 QoS资源。 · a QoS resource allocation module: configured to receive a QoS resource allocation request according to an NGN functional entity, Assigning QoS resources to the mobile node user. ·
13、 根据权利要求 12所述的***， 其特征在于， 所述***还包括： 移动 节点用户的目标 LER/FA, 目标 LER/FA中设置有第一 QoS协商模块；  The system according to claim 12, wherein the system further comprises: a target LER/FA of the mobile node user, and a first QoS negotiation module is set in the target LER/FA;
第一 QoS协商模块接收移动节点用户发送来的 QoS资源请求， 向移动节 点用户的当前 LER/FA发送 QoS协商请求， 与该当前 LER/FA中的第一 QoS资 源请求模块进行 QoS资源协商，第一 QoS资源请求模块向 NGN功能实体发送 QoS资源分配请求， QoS资源分配模块为所述移动节点用户分配相应的 QoS 资源， 并向第一 QoS资源请求模块返回 QoS资源分配响应， 第一 QoS资源请 求模块向第一 QoS协商模块返回 QoS协商响应， 第一 QoS协商模块向所述移 动节点用户返回 QoS资源响应。  The first QoS negotiation module receives the QoS resource request sent by the mobile node user, sends a QoS negotiation request to the current LER/FA of the mobile node user, and performs QoS resource negotiation with the first QoS resource request module in the current LER/FA, A QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, the QoS resource allocation module allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the first QoS resource requesting module, the first QoS resource request The module returns a QoS negotiation response to the first QoS negotiation module, and the first QoS negotiation module returns a QoS resource response to the mobile node user.
14、 根据权利要求 12所述的***， 其特征在于， 所述***还包括： 移动 节点用户的目标 LER/FA, 目标 LER/FA中设置有第二 QoS协商模块；  The system according to claim 12, wherein the system further comprises: a target LER/FA of the mobile node user, and a second QoS negotiation module is set in the target LER/FA;
第二 QoS协商模块接收移动节点用户发送来的 QoS资源请求， 向所述 LER/RFA或 LER/GFA发送 QoS协商请求， 与 LER/RFA或 LER/GFA中的第二 QoS资源请求模块进行 QoS资源协商， 第二 QoS资源请求模块向 NGN功能实 体发送 QoS资源分配请求， QoS资源分配模块为所述移动节点用户分配相应 的 QoS资源， 并向第二 QoS资源请求模块返回 QoS资源分配响应， 第二 QoS 资源请求模块向第二 QoS协商模块返回 QoS协商响应， 第二 QoS协商模块向 所述移动节点用户返回 QoS资源响应。  The second QoS negotiation module receives the QoS resource request sent by the mobile node user, sends a QoS negotiation request to the LER/RFA or LER/GFA, and performs QoS resources with the second QoS resource request module in the LER/RFA or LER/GFA. Negotiating, the second QoS resource requesting module sends a QoS resource allocation request to the NGN functional entity, the QoS resource allocation module allocates a corresponding QoS resource to the mobile node user, and returns a QoS resource allocation response to the second QoS resource requesting module, and second The QoS resource requesting module returns a QoS negotiation response to the second QoS negotiation module, and the second QoS negotiation module returns a QoS resource response to the mobile node user.
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