WO2007137512A1 - Procédé et système de gestion d'un réseau d'accès multi-trafic - Google Patents

Procédé et système de gestion d'un réseau d'accès multi-trafic Download PDF

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Publication number
WO2007137512A1
WO2007137512A1 PCT/CN2007/001725 CN2007001725W WO2007137512A1 WO 2007137512 A1 WO2007137512 A1 WO 2007137512A1 CN 2007001725 W CN2007001725 W CN 2007001725W WO 2007137512 A1 WO2007137512 A1 WO 2007137512A1
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WIPO (PCT)
Prior art keywords
user
access
network
link
resource
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PCT/CN2007/001725
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English (en)
French (fr)
Inventor
Weilong Ouyang
Original Assignee
Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP07721298A priority Critical patent/EP2023538A4/en
Publication of WO2007137512A1 publication Critical patent/WO2007137512A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854Wide area networks, e.g. public data networks
    • H04L12/2856Access arrangements, e.g. Internet access
    • H04L12/2858Access network architectures
    • H04L12/2859Point-to-point connection between the data network and the subscribers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/30Routing of multiclass traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/72Admission control; Resource allocation using reservation actions during connection setup
    • H04L47/724Admission control; Resource allocation using reservation actions during connection setup at intermediate nodes, e.g. resource reservation protocol [RSVP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/74Admission control; Resource allocation measures in reaction to resource unavailability
    • H04L47/745Reaction in network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/76Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
    • H04L47/762Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions triggered by the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/80Actions related to the user profile or the type of traffic
    • H04L47/808User-type aware

Definitions

  • the present invention relates to the field of access networks, and in particular, to a method and system for controlling a multi-service access network. Background technique
  • next-generation access network should have multiple edge capabilities, and provide users with a common Layer 2 link through the access network to simultaneously access different network service providers (NSP, Network Service Provider). ) and application provider (ASP, Application Service Provider).
  • NSP Network Service Provider
  • ASP Application Service Provider
  • the user can select a service or destination through a custom control interface or tunnel, or the access network can make a choice of service or destination without user involvement.
  • the access network In order to enable users to use more and more bandwidth, the access network needs to provide more transmission capabilities. How to maximize the utilization of the resources of the access network enables the provider to obtain greater benefits. The requirements of the next generation access network. Dynamic QoS mechanisms such as bandwidth allocation, application-based and session-based QoS control are powerful tools for improving the utilization of access network resources, and corresponding dynamic QoS solutions are proposed.
  • the existing QoS control architecture is shown in Figure 1.
  • a transport control layer is added between the service layer and the transport layer: Resource Admission Control Subsystem (RACS), a business-based policy decision function SPDF And the access resource admission control function A-RACF is composed.
  • the service layer requests the user to use the resource and control policy of the service through the Gq interface, and the RACS sends the resource request and the control policy to the corresponding IPEdge and Border Node for resource allocation. And policy enforcement.
  • AN Access Node
  • AN Access Node
  • IPEdge is the edge node of the access network and is connected to the IP transport network.
  • NASS is a network connection management subsystem that only has data and control interfaces with IPEdge.
  • the user of the access network is authenticated, authorized, and assigned, and the attributes and IP addresses of the users of the RACS are notified through the e4 interface.
  • Embodiments of the present invention provide a method and system for controlling a multi-service access network, so that a user can dynamically access multiple services.
  • An embodiment of the present invention provides a method for controlling a multi-service access network, including:
  • the mapping of the user flow to the user access link is established according to the link identifier information and the IP address of the user, and the attribute, the IP address, and the user access link identifier of the user are established. Information, contracted resources, and network identification information are associated.
  • An embodiment of the present invention provides a control system for a multi-service access network, including:
  • a link management function configured to manage links and resources between users in accessing the network
  • a policy execution function performing resource admission control and policy execution according to user attributes or deploying to a network device between an access node and an access edge network side edge;
  • the policy enforcement function sends a request for establishing a link from the access node to the edge of the network side of the access network or/and a corresponding resource according to the request initiated by the UE to the link management function;
  • the link management function sets the link or/and allocates resources according to the request of the received policy enforcement function.
  • FIG. 1 is a schematic diagram of a prior art QoS control architecture
  • FIG. 2 is a structural diagram of a control system of a multi-service access network according to an embodiment of the present invention
  • FIG. 3 is a flowchart of resource allocation and state detection in a method for controlling a multi-service access network according to an embodiment of the present invention.
  • the present invention introduces a control architecture of a multi-service access network. As shown in FIG. 2, the architecture includes the following parts:
  • the access node AN accessing the user side edge of the network, can access multiple ANEs;
  • the edge node of the backbone network and the access network BNE are The edge node of the backbone network and the access network BNE;
  • UMF User Management Function
  • AF Service Control System
  • LMF Link management function
  • the Policy Execution Function performs resource admission control and policy enforcement based on user attributes or deployed to network devices between the AN and the ANE.
  • the PEF can interact with the AF indirectly or directly.
  • Each CE has at least one unique logical link corresponding to it on the AN.
  • each DSL port has a logical link number corresponding thereto, and the CPE can be the terminal of the access network.
  • DSL modem such as DSL modem
  • PC personal computer
  • STB personal area network
  • A provides multiple access technologies and can adapt these access technologies to provide a unified uplink interface.
  • the CPE can access the AN using different access technologies, such as xDSL, Ethernet, PON, Wimax, etc.
  • LMF needs to establish an initial link from AN to ANE for each logical link on the AN;
  • the link between the AN and the ANE can be isolated using the link identity.
  • the process of the user accessing the network includes the following steps:
  • the user initiates a request via an access network of CE, CE from the AN to AN logical link mapped to the logical link to AN ANE, while an access request to add 1 ⁇ AN network identification number (A-NID) then Forwarded to the ANE (the network identification number is E-NID), and the AE forwards the corresponding UMF to the user's access request, such as authentication, address allocation, and the like;
  • A-NID AN network identification number
  • the UMF pushes the user attribute, the IP address, the AN network identifier, and the A E network identifier to the PEF;
  • the PEF notifies the LMF of assigning an AN from the AN to the attribute (IP address, bandwidth, priority, etc.) of the user and the network identification numbers (A-NID, E-NID) of the AN and ANE.
  • ANE user access link (SAL, Subscriber Access Link);
  • the PEF establishes associations between the user attribute, the IP address, the user access link identifier SAL-ID, the contracted resource, the network identifier of the AN and the ANE, and then according to the SAL- ID and the user attribute information (such as SLA, etc.) and the user's policy settings AN ANE, to ensure that users access the network through the SAL in line with service level agreements (SLA, service level agreement) 0 user contract
  • the process of the user accessing the service includes the following steps:
  • the user initiates a registration request for the access service (AF) via the SAL, and the AF is based on the UMF.
  • the user attribute authenticates the user or checks whether the user can access the service from the UMF;
  • the AF notifies the PEF to the user to access the service network, and the PEF can check whether the user can access the network and its resource requirements according to the user attribute pushed by the UMF.
  • the PEF When the PEF accepts the user access resource request, the PEF applies to the LMF to establish an AN to ANE user service link (SSL, Subscriber Service Link) according to the user's IP address, SAL-ID, service identifier, and related attributes. Corresponding resources;
  • LMF sends a corresponding command from AN to ANE, sets a link from AN to ANE (user service link - SSL) and assigns corresponding link number to it.
  • SSL-ID Secure Socket Identity
  • AN and ANE can distinguish the service flow from the user's link address, IP address, port number and other information to establish a mapping of the user service flow to the link;
  • the inbound link is associated with the user service link, and the sum of the resources used by the two link resources is the maximum available resource that the user subscribes to the access network operator, and then the application for the PEF resource is successfully applied;
  • the PEF sets the user service policies of the user and the user according to the SSL-ID and the service attribute to ensure that the SSL of the user accessing the network conforms to the service SLA of the user subscription.
  • the process of using the service by the user includes the following steps:
  • the user initiates a service call via SSL
  • the service control system obtains the resource requirement of the user service link, and applies for the network resource through the PEF.
  • PEF if the user has not established SSL, then steps 3 and 4 of the process of the user accessing the service establish SSL and obtain the SSL-ID and resource allocation, otherwise, apply for access to the LMF according to the information of the user's SSL-ID, service identifier, and the like.
  • the resources of the network, LMF checks the user's SAL, the resources already used by SSL, and allocates corresponding resources for them;
  • the PEF updates the service flow differentiation rule of the AN and the A according to the information such as the session of the user;
  • the service flow of the user is mapped to the user's SSL by the AN or the ANE, and the AN allocates resources that can be used by the service flow according to the SSL and SAL attributes, thereby ensuring The service quality of the service flow in the access network.
  • the process of realizing resource allocation includes the following steps:
  • the LMF initiates a resource allocation request to the A according to the SSL-ID of the user.
  • a E receives the resource allocation request, and sends a resource request message to the link pointed to by the SSL-ID when it is confirmed that the ANE has sufficient resources allocated to the user.
  • the resource requesting network device (AD) of the message path analyzes the remaining resources required for the user, and allocates corresponding resources if sufficient, otherwise the maximum resource used by the resource can be filled in the report. Then, continue to extend the SSL forwarding request message until the AN;
  • the AN checks that the link from the ANE to the AN has enough resources, and responds to the resource admission report message along the SSL to the ANE. After receiving the packet, the network device confirms that the allocated resource is valid. "Management until ANE;
  • ANE receives the resource acceptance report and responds to the LMF's response to the resource acceptance, and the LMF responds to the PEF with the resource allocation;
  • the AD reports the resource state change to the AN or the ANE through the SSL or the SAL, so that the ANE and the AN are aware of the resource change and the AD of the original SSL and SAL path.
  • the resource status change is also known, and resource recovery and redistribution are performed; when receiving the resource status change, the AN can notify the AE again that the resource status change is made to make the resource status seen by the AN and the AE consistent;
  • a E detects or receives a resource status change, it notifies the PEF resource status to change.
  • a control system for a multi-service access network provided by an embodiment of the present invention includes:
  • the user management function UMF is used to authenticate, authorize, and assign addresses to users.
  • the link management function LMF is used to manage links and resources between users in the access network.
  • the policy execution function PEF performs resource admission control and policy execution according to the user attribute or is deployed to the network device between the access node AN and the access network network edge ANE;
  • the link management function body and the policy execution function body are respectively connected to an access node and an edge side of the access network network;
  • the policy execution function body is respectively connected to the link management function body and the user management function body,
  • the link management function LMF performs a link request from the access node AN to the access network network side edge ANE according to the received policy, and sets a link or/and allocates resources according to the request.
  • the link management function is used to distinguish different services by using different links to ensure QoS of multiple services in the access network, and the user can dynamically access multiple services and multiple services based on multiple services.
  • Access network QoS control is used to distinguish different services by using different links to ensure QoS of multiple services in the access network, and the user can dynamically access multiple services and multiple services based on multiple services.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Description

多业务接入网的控制方法及系统 本申请要求于 2006 年 05 月 29 日提交中国专利局、 申请号为 200610060902.X 发明名称为 "多业务接入网的控制系统及控制方法" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及接入网领域, 尤其是涉及一种多业务接入网的控制方法 及系统。 背景技术
随着通信技术的发展, 下一代接入网应具有多边缘的能力, 为用户 提供通过接入网的共用的二层链路可以同时接入到不同的网络业务提供 商 ( NSP, Network Service Provider )和应用提供商 ( ASP, Application Service Provider )。 用户可以通过自定义的控制接口或隧道来选择业务或 目的地, 或者接入网网络可以在无需用户参与的情况下进行业务或目的 地的选择。
为使用户能够使用越来越大的带宽, 接入网需要提供更大的传送能 力, 如何让接入网的资源能够最大程度地得到利用使得提供商获得更大 的受益, 这是运营商对下一代接入网的要求。 按需分配带宽、 基于应用 和会话的 QoS控制等动态 QoS机制成为提高接入网络资源利用率的强有 力的手段, 并提出了相应的动态 QoS解决方案。
现有的 QoS控制架构如图 1所示,在业务层和传送层之间加入了一 个传送控制层: 资源接纳控制子系统(RACS, Resource and Admission Control Subsystem ), 由基于业务的策略决策功能 SPDF和接入资源接纳 控制功能 A-RACF组成, 业务层通过 Gq,接口向 RACS请求用户使用业 务的资源及控制策略, RACS将这些资源请求及控制策略下发到对应的 IPEdge和 Border Node进行资源分配和策略执行。 其中, AN ( Access Node) 是接入网的边缘接入节点。
IPEdge是接入网的边缘节点, 与 IP传送网相连。
NASS是网络连接管理子系统,仅与 IPEdge有数据和控制接口, 负责 对接入网的用户进行认证、 授权和地址分配等处理, 通过 e4接口通知 RACS的用户的属性和 IP地址;
但上述 QoS控制架构尚未实现对用户动态接入。 e4仅在用户接入网 络时推送用户的业务属性, Gq,是基于会话的资源控制接口, 当用户动态 接入到不同的业务时会具备不同的业务属性, 该架构却不具备上述动态 接入不同业务的能力。 发明内容
本发明实施例提供一种多业务接入网的控制方法及系统, 以使用户 可动态接入多业务。
本发明实施例提供一种多业务接入网的控制方法, 包括:
接收用户端发起的请求;
根据所述用户端发起的请求, 建立从接入节点到接入网网络侧边缘 的连接链路;
设置用户接入链路或 /和分配资源。
在用户接入链路设置完成后, 根据用户的链路标识信息、 IP地址, 建立用户流到所述用户接入链路的映射, 并将用户的属性、 IP地址、 用 户接入链路标识信息、 签约的资源、 网络标识信息相关联。
本发明实施例提供一种多业务接入网的控制系统, 包括:
链路管理功能体, 用于管理用户在接入网络中各网元之间链路和资 源;
策略执行功能体, 根据用户属性进行资源接纳控制和策略执行或部 署到接入节点和接入网网络侧边缘之间的网络设备中;
当用户端发起请求, 策略执行功能体根据所述用户端发起的请求向 链路管理功能体发送建立从接入节点到接入网网络侧边缘的链路或 /和 分配相应的资源的请求;
链路管理功能体根据所接收的策略执行功能体的所述请求设置链路 或 /和分配资源。
本发明实施例提供的技术方案中 , 通过链路管理功能体对不同的业 务用不同的链路进行区分, 保证多业务在接入网中的 QoS, 可实现用户 动态接入多业务和基于多业务的接入网 QoS控制。 附图说明
图 1是现有技术的 QoS控制架构示意图;
图 2是本发明实施例中多业务接入网的控制系统的结构图; 图 3是本发明实施例中多业务接入网的控制方法中资源分配及状态 检测的流程图。 具体实施方式
以下结合附图对本发明进行详细描述。
本发明引入了多业务接入网的控制架构, 如图 2所示, 该架构包括 以下几个部分:
用户设备 CE;
接入节点 AN, 接入网络的用户侧边缘, 可接入到多个 ANE;
接入终结点 ANE, 接入网络的网络侧边缘, 可接入多个 AN;
骨干网与接入网的边缘节点 BNE;
用户管理功能体( UMF, User Management Function ), 负责认证、 授权和地址分配等处理功能以及可以间接或直接与业务控制系统( AF ) 交互;
链路管理功能体(LMF, Link Management Function ), 管理用户在 接入网络中各网元之间链路和资源;
策略执行功能体( PEF, Policy Execution Function ), 根据用户属性 进行资源接纳控制和策略执行或部署到 AN和 ANE之间的网络设备中, PEF可以间接或直接与 AF交互。
假设条件:
1 )每个 CE在 AN上至少有一个唯一的逻辑链路与其对应, 例如每 个 DSL端口都有一个逻辑链路号与其对应, CPE可以是接入网的终端
(如 DSL modem ), 也可以是用户终端(PC、 STB等);
2 ) A 提供多种接入技术并可对这些接入技术进行适配提供统一的 上联接口, CPE可使用不同的接入技术接入到 AN,例如 xDSL、 Ethernet, PON、 Wimax等; 3 ) LMF需要为 AN上的每个逻辑链路建立一条从 AN到 ANE的初 始链路;
4 ) AN和 ANE之间的链路可以利用链路标识进行隔离。
下面参照图 2及图 3对本发明实施例中的用户接入网络的过程、 用 户接入业务的过程、 用户使用业务的过程以及资源分配的实现过程进行 描述。
用户接入网络的过程, 包括如下步骤:
5101 , 用户经 CE发起接入网络的请求, AN将从 CE至 AN的逻辑 链路映射到 AN至 ANE的逻辑链路,同时^1接入请求添加 AN的网絡标 识号( A-NID )再转发到 ANE (网络标识号为 E-NID ), 由 A E转发给 对应的 UMF对用户的接入请求进行处理, 如认证、 地址分配等;
5102, UMF将用户的属性、 IP地址、 AN网络标识和 A E网络标 识等信息推送给 PEF;
5103 , PEF根据用户的属性(IP地址、 带宽和优先级等)和 AN和 ANE的网络标识号( A-NID、 E-NID )通知 LMF为其分配一条从 AN到
ANE的用户接入链路 ( SAL , Subscriber Access Link );
5104, LMF通过对 A 到 ANE下发相应的指令, 设置一条从 AN 到 ANE的链路(用户接入链路 SAL )并为其分配相应的链路号( SAL-ID ) 及其所签约的资源, 同时 AN和 ANE可根据用户的链路标识信息、 IP 地址等区分用户流, 建立用户流到该链路的映射(注意: 根据 SAL-ID 可以获得 AN和 ANE的网络标识, 例如 SAL-ID = F ( A-NID, E-NID, LL-ID:), 其中 LL-ID是局部链路号:);
5105,在用户接入链路建立成功后, PEF建立用户的属性、 IP地址、 用户接入链路标识 SAL-ID, 签约的资源、 AN和 ANE的网络标识等信 息的关联, 然后根据 SAL-ID和用户属性信息(如 SLA等)用户的策略 设置 AN和 ANE, 保证用户经过接入网络的 SAL符合用户签约的服务 等级协议 ( SLA, Service Level Agreement )0
用户接入业务的过程, 包括如下步骤:
S201, 用户经 SAL发起接入业务( AF )的注册请求, AF根据 UMF 的用户属性对用户进行认证或从 UMF检查用户能否接入业务;
5202, AF向 PEF通知用户访问其业务网络, PEF可以根据 UMF推 送的用户属性检查用户是否可以接入网络及其资源需求;
5203 , 当 PEF接纳用户接入资源请求时, PEF根据用户的 IP地址、 SAL-ID,业务标识及其相关属性向 LMF申请建立 AN到 ANE的用户业 务链路 ( SSL, Subscriber Service Link )及分配相应资源;
5204, LMF通过对 AN到 ANE下发相应的指令, 设置一条从 AN 到 ANE 的链路 (用户业务链路- SSL ) 并为其分配相应的链路号
( SSL-ID )及其所签约的资源, 同时 AN和 ANE可根据用户的链路地 址、 IP地址、端口号等信息区分业务流建立用户业务流到该链路的映射; 并且, 将用户接入链路和用户业务链路进行关联, 保证两种链路资源使 用资源的总和是用户向接入网运营商签约的最大可用资源, 然后回应 PEF资源申请成功;
5205, PEF在确定资源申请成功后, 根据 SSL-ID和业务属性设置 AN和 A E的用户业务策略,保证用户经过接入网络的 SSL符合用户签 约的业务 SLA。
用户使用业务的过程, 包括如下步驟:
5301 , 用户经 SSL发起业务呼叫;
5302, 在业务接续过程中, 业务控制系统获得用户业务链路的资源 需求, 通过 PEF申请网络资源;
5303 , PEF如果用户还未建立 SSL那么用户接入业务的过程的步骤 3和步骤 4建立 SSL且获得 SSL-ID和资源分配, 否则根据用户的 SSL-ID. 业务标识等信息向 LMF申请接入网的资源, LMF检查用户的 SAL, SSL已经使用的资源, 为其分配相应的资源;
S304, 在资源分配成功后, PEF根据用户的会话等信息, 更新 AN 和 A E的业务流区分规则等策略;
5305, PEF向 AF反馈, 业务可以接续;
5306,在业务接续后,用户的业务流就被 AN或 ANE映射到用户的 SSL中, AN根据 SSL和 SAL属性调度该业务流可使用的资源, 从而保 证业务流在接入网的服务质量。
资源分配的实现过程, 包括如下步骤:
S401 , 当 AF通过 PEF申请网络资源时, LMF根据用户的 SSL-ID 向 A E发起资源分配请求;
S402, A E收到资源分配请求, 在确认 ANE有足够的资源分配给 用户使用时, 向 SSL-ID所指向的链路发送资源请求报文;
5403 , 该资源请求报文途径的网络设备(AD ), 分析其剩余所需的 资源给该用户使用, 如果充足即为其分配相应的资源, 否则将能够给其 使用的最大资源填入该报文, 然后继续延 SSL转发请求报文, 直到 AN 为止;
5404, AN检查从 ANE到 AN的链路具备足够的资源后, 沿 SSL向 ANE回应资源接纳报告消息, 途径的网络设备在收到该报文后, 确认为 其分配的资源生效启动 "软状态" 管理, 直至 ANE;
5405, ANE收到资源接纳报告向 LMF回应资源接纳情况, LMF向 PEF回应资源分配情况;
5406, 当 AN和 ANE之间的接入网设备的相邻设备出现故障时, AD通过 SSL或 SAL向 AN或 ANE上报资源状态变更, 让 ANE和 AN 获知资源变更以及原先 SSL和 SAL途径的 AD也获知资源状态变更,进 行资源回收和重分配等处理; AN在收到资源状态变更时, 可以再次通 知 A E其接纳资源状态变更让 AN和 A E看到的资源状态保持一致;
5407, 当 A E检测或收到资源状态变更时, 通知 PEF资源状态变 更。
参照图 2, 本发明实施例提供的一种多业务接入网的控制系统, 包 括:
用户管理功能体 UMF, 用于对用户进行认证、 授权和地址分配; 链路管理功能体 LMF,用于管理用户在接入网络中各网元之间链路 和资源;
策略执行功能体 PEF, 根据用户属性进行资源接纳控制和策略执行 或部署到接入节点 AN和接入网网络侧边缘 ANE之间的网络设备中; 所述链路管理功能体、 策略执行功能体分别与接入节点、 接入网网 络侧边缘相连;
所述策略执行功能体分别与所述链路管理功能体、 用户管理功能体 相连,
链路管理功能体 LMF根据接收的策略执行功能体 PEF的建立从接 入节点 AN到接入网网络侧边缘 ANE的链路请求,并根据所述请求设置 链路或 /和分配资源。
本领域技术人员可以理解, 上述实施例中的全部或部分功能模块及 各步骤可以通过程序来指令相关硬件来实现, 所述程序可存储于计算机 可读取存储介质中, 所述存储介质, 如 ROM/RAM、 磁盘、 光碟等。 或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或 步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定 的硬件和软件结合。
从上述本发明实施例可知, 通过链路管理功能体对不同的业务用不 同的链路进行区分, 保证多业务在接入网中的 QoS, 可实现用户动态接 入多业务和基于多业务的接入网 QoS控制。
上述实施例是用于说明和解释本发明的原理的。 可以理解, 本发明 的具体实施方式不限于此。 对于本领域技术人员而言, 在不脱离本发明 的实质和范围的前提下进行的各种变更和修改均涵盖在附后的权利要求 所限定的保护范围之内。

Claims

权 利 要 求
1、 一种多业务接入网的控制方法, 其特征在于, 包括以下步骤: 接收用户端发起的请求;
根据所述用户端发起的请求, 建立从接入节点到接入网网络侧边缘 的连接链路; 设置用户接入链路或 /和分配资源。
2、 根据权利要求 1所述的方法, 其特征在于, 进一步包括: 在用户接入链路设置完成后, 根据用户的链路标识信息、 IP地址, 建立用户流到所述用户接入链路的映射, 并将用户的属性、 Π>地址、 用 户接入链路标识信息、 签约的资源、 网络标识信息相关联。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 如果所述用户端发 起的请求为接入网络请求,
将所述用户的属性、 IP地址、 接入节点的网络标识和接入网网絡侧 边缘的网络标识信息携带在所述接入网絡请求消息中。
4、根据权利要求 3所述的方法, 其特征在于, 所述建立从接入节点 到接入网网络侧边缘的链路包括以下步骤:
设置从接入节点到接入网网絡侧边缘的用户接入链路并为其分配相 应的链路号;
接入节点和接入网网络侧边缘建立用户流到该链路的映射。
5、 根据权利要求 3所述的方法, 其特征在于, 还包括步驟: 在用户接入链路设置完成后, 设置接入节点和接入网网络侧边缘的 用户策略。
6、 根据权利要求 1或 2所述的方法, 其特征在于, 如果用户端发起的 请求为接入业务请求, 所述用户发起请求的过程,进一步包括以下步骤: 所述用户发出请求之后, 用户经用户接入链路发起接入业务请求; 对用户进行认证或从用户管理功能体检查用户能否接入业务; 才艮据用户属性检查用户是否可以接入网络及所需资源。
7、 根据权利要求 6所述的方法, 其特征在于, 所述设置所述链路或 分配资源之后还包括:
将用户接入链路和用户业务链路进行关联, 并反馈资源申请成功信 息;
在确定资源申请成功后, 设置接入节点和接入网网络侧边缘的用户 业务策略。
8、根据权利要求 1或 2所述的方法, 其特征在于, 如果所述用户端 发起的请求为使用业务请求, 所述用户发起请求的过程, 进一步包括以 下步骤:
用户经用户业务链路发起业务呼叫;
用户业 路的资源需求, 申请网络资源。
9、 根据权利要求 8所述的方法, 其特征在于, 进一步包括: 如果用户还未建立用户业务链路, 则申请建立用户业务链路并获得 用户业务链路号和分配的资源;
如果已建立用户业务链路, 则申请接入网的资源。
10、 根据权利要求 8所述的方法, 其特征在于, 进一步包括: 在接收到网络资源请求后, 检查用户接入链路、 用户业务链路已经 使用的资源, 并才艮据所述网络资源请求为其分配相应的资源;
在资源分配成功后,更新接入节点和接入网网络侧边缘的业务策略; 进行业务接续。
11、 根据权利要求 8所述的方法, 其特征在于, 还包括:
设置所述链路或分配资源之后,调度所述业务流可使用的资源。
12、根据权利要求 10所述的方法, 其特征在于, 所述检查用户业务 链路已经使用的资源, 为其分配相应的资源的过程具体包括步驟:
收到资源分配请求, 在确认有足够的资源分配给用户使用时, 发送 资源请求报文;
该资源请求艮文途经的网络设备检查其剩余的资源是否足够给该用 户使用, 如果充足, 则为其分配相应的资源, 否则, 将能够供其使用的 最大资源填入该 4艮文, 继续延用户业务链路转发请求报文, 直到接入节 点为止;
接入节点检查从接入网网络侧边缘到接入节点的链路具备足够的资 源后, 向接入网网络侧边缘回应资源接纳报告消息, 该消息转发路径中 的网络设备收到该报文后, 确认为其分配的资源生效, 直至接入网网络 侧边缘;
接入网网络侧边缘收到资源接纳报告向链路管理功能体回应资源接 纳情况, 链路管理功能体向策略执行功能体回应资源分配情况。
13、 ^据权利要求 10所述的方法,其特征在于,在资源分配成功后, 当接入节点和接入网网络侧边缘之间的接入网设备的相邻设备出现故障 导致资源状态变更时, 所述更新接入节点和接入网网络侧边缘的业务策 略进一步包括以下步骤:
资源请求报文途经的网络设备分别向接入节点或接入网网络侧边缘 上报资源状态变更;
接入节点、 接入网网络侧边缘以及原先用户业务链路和用户接入链 路途经的网络设备获知资源变更, 进行资源回收重新分配资源;
接入节点在收到资源状态变更时, 再次通知接入网网络侧边缘接纳 资源状态变更;
当接入网网絡侧边缘检测或收到资源状态变更时, 通知策略执行功 能体资源状态变更。
14、 一种多业务接入网的控制系统, 其特征在于, 包括:
链路管理功能体, 用于管理用户在接入网絡中各网元之间链路和资 源;
策略执行功能体, 根据用户属性进行资源接纳控制和策略执行或部 署到接入节点和接入网网络侧边缘之间的网络设备中;
当用户端发起请求, 策略执行功能体根据所述用户端发起的请求向 链路管理功能体发送建立从接入节点到接入网网络侧边缘的链路或 /和 分配相应的资源的请求;
链路管理功能体根据所接收的策略执行功能体的所述请求设置链路 或 /和分配资源。
15、 根据权利要求 14所述的系统, 其特征在于,
在用户端发起的接入业务请求时, 链路管理功能体指示接入节点和 接入网网络侧边缘, 设置从接入节点到接入网网络侧边缘的用户业务链 路并为其分配相应的链路号及其所签约的资源;
链路管理功能体控制建立用户业务流到接入节点和接入网网络侧边 缘的链路的映射。
16、 根据权利要求 14所述的系统, 其特征在于,
在用户接入链路设置完成后, 所述链路管理功能体根据用户的链路 标识信息、 IP地址, 建立用户流到所述用户接入链路的映射。
17、 根据权利要求 14所述的系统, 其特征在于, 还包括: 用户管理功能体, 用于对用户进行认证、 授权和地址分配; 用户管理功能体对接收到的用户的接入请求后, 对用户进行认证; 并在认证通过后, 所述用户管理功能体将该用户的属性、 IP地址、 接入节点的网络标识和接入网网络侧边缘的网络标识信息推送给策略执 行功能体。
18、 根据权利要求 17所述的系统, 其特征在于, 在用户接入链路设 置完成后, 所述策略执行功能体将所述用户的属性、 IP地址、 用户接入 链路标识信息、 签约的资源、 网络标识信息相关联, 并设置接入节点和 接入网网络侧边缘的用户策略。
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