WO2009094923A1

WO2009094923A1 - Implementing method and system for transmitting service in next generation network

Info

Publication number: WO2009094923A1
Application number: PCT/CN2009/070164
Authority: WO
Inventors: Jixiong Dong
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2008-01-18
Filing date: 2009-01-15
Publication date: 2009-08-06
Also published as: CN101488900A

Abstract

An implementing method and system for transmitting service in Next Generation Network, in which the method includes: bringing PCE/GMPLS into NGN network controlled by RACF to realize the management and control of the transport network by RACF; Transport Resource Control Function Entity TRC-FE of NGN network controlled by RACF working in cooperation with PCE to performing centralized management and control of the transport network services, and indicating the provider equipment to establish a label switch path for the transport network services; managing, controlling and transmitting the transport network services after the label switch path is established.

Description

代网络中传送业务的实现方法及*** Method and system for realizing transmission service in generation network

本申请要求于 2008年 1月 18日提交中国专利局、申请号为 200810025946.8、发明名称为 "在下一代网络中传送业务的实现方法及***" 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 This application claims priority to Chinese Patent Application No. 200810025946.8, entitled "Implementation Method and System for Transmitting Services in Next Generation Networks" on January 18, 2008, the entire contents of which are hereby incorporated by reference. Combined in this application. Technical field

本发明涉及通信技术领域，尤其涉及一种在下一代网络（ NGN , Next Generation Network ) 中传送业务的实现方法及***。皆景技术 The present invention relates to the field of communications technologies, and in particular, to a method and system for implementing a service in a Next Generation Network (NGN). Scenery technology

国际电信联 ( ITU-T, International Telecommunication Union - Telecommunication Standards Sector )下一代网络研究组（ NGN FG, Generation Network Focus Group )推出了 NGN架构， NGN架构分为两层：业务层 (service stratum)和传送层 (transport stratum)。业务层主要是处理用户业务请求并将其发送到传送层进行处理，传送层主要是对业务层发送过来的业务请求进行准入控制、路径选择与配置和流量传送。其中，准入控制和路径选择与配置主要是由资源和接纳控制功能实体 ( RACF, Resource and Admission Control Function )来完成的。而流量传送是由传送网元来完成的。传送网元包括接入设备、接入传送设备、核心网设备、核心网传送设备。 RACF的功能模型如图 1所示。接入网上主要开展基于 IP的语音业务（ VOIP, Voice over IP ) ,按需视频业务（VOD, Video on Demand )、按需带宽业务（BOD, Bandwidth on Demand )、基于 IP的电视业务（IPTV, IP-based Television )业务。本发明实施例中所指的 NGN网络是一种更广泛意义上的 NGN网络，它包括用 ITU-T定义的 RACF来控制的网络，也包括用 TISPAN定义的 RACS来控制的网络。 The ITU-T (International Telecommunication Union - Telecommunication Standards Sector) Next Generation Network Focus Group (NGN FG, Generation Network Focus Group) has launched the NGN architecture. The NGN architecture is divided into two layers: service stratum and transport. Transport stratum. The service layer mainly processes user service requests and sends them to the transport layer for processing. The transport layer mainly performs admission control, path selection and configuration, and traffic transmission for service requests sent by the service layer. Among them, admission control and path selection and configuration are mainly implemented by the Resource and Admission Control Function (RACF). Traffic transmission is done by the transport network element. The transport network element includes an access device, an access transport device, a core network device, and a core network transport device. The functional model of RACF is shown in Figure 1. The access network mainly implements voice over IP (VOIP, Voice over IP), video on demand (VOD, Video on Demand), bandwidth on demand (BOD, Bandwidth on Demand), and IP-based TV service (IPTV, IP-based Television) business. The NGN network referred to in the embodiment of the present invention is a NGN network in a broader sense, which includes a network controlled by an RACF defined by ITU-T, and a network controlled by a RACS defined by TISPAN.

本发明实施例中所指的传送网是窄义上的传送网，包含在 NGN的传送层 (transport stratum)中，主要采用同步数字体系（ SDH, Synchronous Digital Hierarchy ),波分复用（WDM, Wavelength Division Multiplexing)、光传送网（ OTN, The transport network referred to in the embodiment of the present invention is a narrow transport network, which is included in the transport stratum of the NGN, mainly adopts Synchronous Digital Hierarchy (SDH), and wavelength division multiplexing (WDM). Wavelength Division Multiplexing), Optical Transport Network (OTN,

) 、运营商骨干网桥-流量工程（PBB-TE, Provider Backbone Bridge ) 、多协议标签交换路径传送网（T-MPLS, ), carrier backbone bridge - traffic engineering (PBB-TE, Provider Backbone Bridge), multi-protocol label switching path transport network (T-MPLS,

Transport-Multi-Protocol Label Switch )等技术的网络设备，传送网上可以开展的业务主要是面向大客户的 1层虚拟私有网络（ L1VPN, Layer 1 Virtual Private Network ) 、 2层虚拟私有网络（ L2VPN, Layer 2 Virtual Private Network ) 、 BOD 等业务，而非接入网所开展的面向终端个人用户的业务（比如 VOIP等）。 Network equipment such as Transport-Multi-Protocol Label Switch), the services that can be carried out on the transport network are mainly Layer 1 Virtual Private Network (L1VPN, Layer 2 Virtual Private Network) and Layer 2 Virtual Private Network (L2VPN, Layer). 2 Virtual Private Network ), BOD and other services, not the services of terminal-oriented individual users (such as VOIP, etc.).

现有的 NGN***协议与接口对传送网络的支持非常有限，特别是不支持在通用多协议标签交换路径（GMPLS, Generalized Multi-Protocol Label Switch ) 、路径计算单元（ PCE , Path Computation Element )控制下的传送网络。 The existing NGN system protocols and interfaces support the transport network very limited, especially under the control of the Generalized Multi-Protocol Label Switch (GMPLS) and the Path Computation Element (PCE). Delivery network.

发明人在本发明的创造过程中，发现目前定义的 NGN协议在支持传送网业务控制与管理方面存在如下问题： During the creation process of the present invention, the inventors found that the currently defined NGN protocol has the following problems in supporting the control and management of the transport network:

现有的 NGN协议只支持 MPLS LSP,部分支持以太网，不支持 SDH路径连接，也不支持 PBB-TE/PBT路径连接，资源和接纳控制子***（RACS, Resource and Admission Control Subsystem ) 中实现传送业务也存在同样的问题。发明内容 The existing NGN protocol only supports MPLS LSP, partially supports Ethernet, does not support SDH path connection, and does not support PBB-TE/PBT path connection. The resource and admission control subsystem (RACS, Resource and Admission Control Subsystem) implements transmission. The same problem exists in the business. Summary of the invention

本发明实施例提供一种在 NGN网络中传送业务的实现方法及***，将传送网的功能纳入 NGN网络，在 NGN网络中构建高可用性的传送网，统一了业务运营***。 Embodiments of the present invention provide a method and system for implementing a service in an NGN network, incorporating the function of the transport network into the NGN network, constructing a highly available transport network in the NGN network, and unifying the service operation system.

本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法，包括： An implementation method for transmitting a service in an RACF controlled NGN network provided by an embodiment of the present invention includes:

在 RACF控制的 NGN网络中纳入 PCE/GMPLS , 以实现 RACF对传送网络的管理和控制； Incorporating PCE/GMPLS into the RACF-controlled NGN network to implement RACF management and control of the transport network;

RACF 控制的 NGN 网络的传送资源控制功能实体 TRC-FE 与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并指示运营商设备为传送网业务建立标签交换路径； The transmission resource control function entity TRC-FE of the NGN network controlled by the RACF cooperates with the PCE/GMPLS to perform centralized management and control of the transport network service, and instructs the operator equipment to establish a label switching path for the transport network service;

所述标签交换路径建立后，管理控制并传送所述业务。 After the label switching path is established, the management controls and transmits the service.

本发明实施例还提供了一种在 RACS控制的 NGN网络中传送业务的实现方法，包括： The embodiment of the present invention further provides an implementation method for transmitting a service in a RACS controlled NGN network, including:

在 RACS控制的 NGN网络中纳入 PCE/GMPLS , 以实现 RACS对传送网络的管理和控制； RACS 控制的 NGN 网络的接入资源和接纳控制功能 A-RACF 与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并指示运营商设备为传送网业务建立标签交换路径； Incorporate PCE/GMPLS into the RACS-controlled NGN network to implement RACS management and control of the transport network; The access resource and the admission control function A-RACF of the RACS-controlled NGN network work in cooperation with the PCE/GMPLS to centrally manage and control the transport network service, and instruct the operator equipment to establish a label switching path for the transport network service;

相应地，本发明实施例还提供了一种在 RACF控制的 NGN网络中传送业务的实现***，所述在 RACF控制的 NGN网络中纳入了 PCE/GMPLS , 包括：传送资源控制功能实体 TRC-FE, 用于与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并建立传送网业务的标签交换路径； Correspondingly, an embodiment of the present invention further provides an implementation system for transmitting a service in a RACF-controlled NGN network, where the PCE/GMPLS is included in the RACF-controlled NGN network, including: a transmission resource control function entity TRC-FE And working together with the PCE/GMPLS to perform centralized management and control on the transport network service, and establish a label switching path of the transport network service;

策略决策功能实体 PD-FE, 用于在所述标签交换路径建立后，管理控制并传送所述业务； a policy decision function entity PD-FE, configured to manage and control the service after the label switching path is established;

路径计算单元 PCE, 用于为所述传送网业务建立标签交换路径计算路径，并提供路径信息； a path calculation unit PCE, configured to establish a label switching path calculation path for the transport network service, and provide path information;

通用多协议标记交换模块 GMPLS,用于与所述 TRC-FE以及 PCE协同工作，对所述传送网业务进行管理和控制，并为其建立标签交换路径。 The universal multi-protocol label switching module GMPLS is configured to cooperate with the TRC-FE and the PCE to manage and control the transport network service and establish a label switching path for the transport network.

本发明实施例还提供了一种在 RACS控制的 NGN网络中传送业务的实现系统，所述在 RACS控制的 NGN网络中纳入了 PCE/GMPLS, 包括： The embodiment of the present invention further provides an implementation system for transmitting a service in a RACS-controlled NGN network, where the PCG/GMPLS is included in the NGN network controlled by the RACS, including:

接入资源和接纳控制功能 A-RACF,用于与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并建立传送网业务的标签交换路径；在所述标签交换路径建立后，管理控制并传送所述业务； An access resource and admission control function A-RACF, configured to work in cooperation with the PCE/GMPLS, centrally manage and control the transport network service, and establish a label switching path of the transport network service; establish the label switching path Afterwards, the management controls and transmits the business;

路径计算单元 PCE, 用于为管理和控制所述传送网业务，并为所述传送网业务建立标签交换路径计算路径，并提供路径信息； a path calculation unit PCE, configured to manage and control the transport network service, and establish a label switching path calculation path for the transport network service, and provide path information;

通用多协议标签交换模块 GMPLS , 用于与所述 A-RACF以及 PCE协同工作，对所述传送网业务进行管理和控制，并为其建立标签交换路径。 The universal multi-protocol label switching module GMPLS is configured to cooperate with the A-RACF and the PCE to manage and control the transport network service, and establish a label switching path for the transport network.

在实施本发明的实施例，具有如下有益效果： In implementing the embodiments of the present invention, the following beneficial effects are obtained:

在 NGN网络中纳入传送网的 PCE/GMPLS, 所述 PCE/GMPLS与 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并建立标签交换路径传送所述业务；在 NGN网络中构建高可用性的传送网，统一了业务运营***。附图说明图 1是现有的 NGN结构的示意图； The PCE/GMPLS of the transport network is included in the NGN network, and the PCE/GMPLS cooperates with the resource control function entity in the NGN network to perform centralized management and control on the transport network service, and establishes a label switching path to transmit the service; A highly available transport network is built in the NGN network to unify the business operation system. DRAWINGS Figure 1 is a schematic view of a conventional NGN structure;

图 2是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法第一实施例的流程示意图； 2 is a schematic flowchart of a first embodiment of an implementation method for transmitting a service in an RACF controlled NGN network according to an embodiment of the present invention;

图 3是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法第二实施例的流程示意图； 3 is a schematic flowchart of a second embodiment of an implementation method for transmitting a service in an RACF controlled NGN network according to an embodiment of the present invention;

图 4是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法第三实施例的流程示意图； 4 is a schematic flowchart of a third embodiment of an implementation method for transmitting a service in an RACF controlled NGN network according to an embodiment of the present invention;

图 5是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现系统的组成示意图； FIG. 5 is a schematic structural diagram of an implementation system for transmitting a service in an RAGN controlled NGN network according to an embodiment of the present invention; FIG.

图 6是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法第一实施例的流程示意图； 6 is a schematic flowchart of a first embodiment of an implementation method for transmitting a service in a RACS controlled NGN network according to an embodiment of the present invention;

图 7是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法第二实施例的流程示意图； FIG. 7 is a schematic flowchart of a second embodiment of an implementation method for transmitting a service in a RACS controlled NGN network according to an embodiment of the present disclosure;

图 8是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法第三实施例的流程示意图； FIG. 8 is a schematic flowchart of a third embodiment of an implementation method for transmitting a service in a RACS controlled NGN network according to an embodiment of the present disclosure;

图 9是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现系统的组成示意图。具体实施方式 FIG. 9 is a schematic structural diagram of an implementation system for transmitting a service in a RACS controlled NGN network according to an embodiment of the present invention. detailed description

参见图 2, 是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法第一实施例的流程示意图。 FIG. 2 is a schematic flowchart diagram of a first embodiment of a method for implementing a service in an RACF controlled NGN network according to an embodiment of the present invention.

在步骤 100,在 RACF控制的 NGN网络中纳入 PCE/GMPLS,以实现 RACF 对传送网络的管理和控制； In step 100, PCE/GMPLS is included in the RACF controlled NGN network to implement RACF management and control of the transport network;

在步骤 101 , 传送资源控制功能实体（TRC-FE, Transport Resource Control Function Entity )接收来自策略决策功能实体（ PD-FE, Policy Decision Function Entity ) 的为传送网业务分配资源的请求； In step 101, a Transport Resource Control Function Entity (TRC-FE) receives a request for allocating resources for a transport network service from a Policy Decision Function Entity (PD-FE);

在步骤 102, TRC-FE分析所述传送网业务所经过的运营商边缘设备之间的标签交换路径是否建立； At step 102, the TRC-FE analyzes between the carrier edge devices that the transport network traffic passes through. Whether the label switching path is established;

在步骤 103, 若标签交换路径已经建立，则判断其是否满足传送网业务的资源要求； In step 103, if the label switching path has been established, it is determined whether it meets the resource requirement of the transport network service;

在步骤 104,在已建立的标签交换路径不满足传送网业务的资源要求或者标签交换路径没有建立的情况下， TRC-FE向 PCE发起路径计算请求，以选择所述传送网业务所经过运营商边缘设备之间的标签交换路径；可选的，如标签交换路径满足传送网业务的资源要求，则使用已经建立的标签交换路径，管理控制并传送所述传送网业务。 In step 104, if the established label switching path does not satisfy the resource requirement of the transport network service or the label switching path is not established, the TRC-FE initiates a path calculation request to the PCE to select the transport network service to pass through the operator. The label switching path between the edge devices; optionally, if the label switching path satisfies the resource requirements of the transport network service, the established label switching path is used to manage and control the transport network service.

在步骤 105, TRC-FE接收来自 PCE的路径计算结果，获取路径信息；需要说明的是，这里的路径信息，可以是全部的路径信息，也可以是部分的路径信息； In step 105, the TRC-FE receives the path calculation result from the PCE, and obtains the path information. It should be noted that the path information herein may be all path information or part of the path information.

在步骤 106, 根据所述 TRC-FE管理的传送网类型，获取对应的资源信息；在步骤 107, TRC-FE向运营商设备发起命令以建立标签交换路径，或者通过 PD-FE向运营商设备发起命令以建立标签交换路径，所述命令中携带有资源信息，包括有：业务标识符、源运营商边缘设备、目的运营商边缘设备、和 /或路径信息、标签、网络 QOS参数、保护关系、优先级等参数； In step 106, the corresponding resource information is obtained according to the transport network type managed by the TRC-FE. In step 107, the TRC-FE initiates a command to the carrier equipment to establish a label switching path, or uses the PD-FE to the carrier equipment. The command is initiated to establish a label switching path, where the command carries resource information, including: a service identifier, a source carrier edge device, a destination carrier edge device, and/or path information, a label, a network QOS parameter, and a protection relationship. , priority and other parameters;

需要说明的是，在此步骤中，所述命令中是否携带路径信息，需要根据步骤 105中 PCE是否向 TRC-FE返回了全部的路径信息而定； It should be noted that, in this step, whether the path information is carried in the command needs to be determined according to whether the PCE returns all the path information to the TRC-FE in step 105;

若在步骤 105, PCE计算出路径后，就将全部的路径信息返回给 TRC-FE, 则步骤 107中， TRC-FE将路径信息携带在所述命令中，直接发送给运营商设备，或者通过 PD-FE发送给运营商设备；具体处理流程是： TRC-FE收到了 PD-FE 的资源请求后向 PCE发起路径计算请求（含业务标识符）， PCE计算完毕后，返回全部的路径信息， TRC-FE收到了路径信息后，直接向运营商设备发起标签交换路径建立命令，或者通过 PD-FE向运营商设备发起标签交换路径建立命令，在该命令中包含所述路径信息； If, in step 105, the PCE calculates the path, the path information is returned to the TRC-FE. In step 107, the TRC-FE carries the path information in the command, and directly sends the information to the operator equipment, or The PD-FE is sent to the carrier device. The specific processing procedure is as follows: After receiving the resource request of the PD-FE, the TRC-FE initiates a path calculation request (including a service identifier) to the PCE. After the PCE is calculated, all the path information is returned. After receiving the path information, the TRC-FE directly initiates a label switching path establishment command to the operator equipment, or initiates a label switching path establishment command to the operator equipment through the PD-FE, where the path information is included in the command;

若在步骤 105, PCE计算出路径后，只是将部分的路径信息返回给 TRC-FE, 则步骤 107 中， TRC-FE在所述命令中不携带路径信息；具体处理流程是： TRC-FE收到了 PD-FE的资源请求后向 PCE发起路径计算请求（含业务标识符 ), PCE计算完毕后，并不返回全部的路径信息，而是告诉 TRC-FE是否有可用路径，当 TRC-FE收到了肯定的信息后，直接向运营商设备发起标签交换路径建立命令，或者通过 PD-FE向运营商设备发起标签交换路径建立命令，在该命令中不包含路径信息。当运营商设备收到该命令后，向 PCE发起路径计算请求， PCE再根据业务标识符返回详细路径信息。 If, in step 105, the PCE calculates the path and only returns part of the path information to the TRC-FE, in step 107, the TRC-FE does not carry the path information in the command; the specific processing flow is: TRC-FE After the resource request of the PD-FE is sent, the path calculation request (including the service identifier) is sent to the PCE. After the PCE is calculated, the path information is not returned, but the TRC-FE is notified whether the available path is available. After the affirmative information is reached, the label switching path is directly initiated to the carrier device. A command is issued, or a label switching path establishment command is initiated to the carrier device through the PD-FE, and the path information is not included in the command. After receiving the command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information according to the service identifier.

在步骤 108, 源运营商边缘设备接收到所述标签交换路径建立命令后，向目的运营商边缘设备发起建立运营商边缘设备之间的标签交换路径信令； After receiving the label switching path establishment command, the source operator edge device initiates label switching path signaling between the operator edge devices to the destination carrier edge device.

在步骤 109, 根据所述命令中携带的资源信息以及路径信息，建立源运营商边缘设备和目的运营商边缘设备之间的标签交换路径； In step 109, a label switching path between the source operator edge device and the destination carrier edge device is established according to the resource information and the path information carried in the command.

在步骤 110, 所述标签交换路径建立后，管理控制并传送所述传送网业务；本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法，通过在 RACF控制的 NGN网络中纳入传送网的 PCE/GMPLS , PCE/GMPLS与 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并建立标签交换路径以承载传送网业务；在 NGN网络中构建高可用性的传送网，统一了业务运营***。 After the label switching path is established, the management and control of the transport network service is performed. The method for implementing the transport service in the RACF-controlled NGN network provided by the embodiment of the present invention is incorporated in the RACF-controlled NGN network. PCE/GMPLS of the transport network, PCE/GMPLS works in conjunction with the resource control function entity in the NGN network to centrally manage and control the transport network services, and establish a label switched path to carry transport network services; The transport network for availability unifies the business operations system.

参见图 3, 是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法第二实施例的流程示意图。 FIG. 3 is a schematic flowchart diagram of a second implementation manner of a method for transmitting a service in an RAGN-controlled NGN network according to an embodiment of the present invention.

在步骤 200, 在 RACF控制的 NGN网络中纳入传送网的 PCE/GMPLS , 以实现 RACF控制的 NGN网络对传送网络的管理和控制； In step 200, PCE/GMPLS of the transport network is included in the RAGN controlled NGN network to implement management and control of the transport network by the RACF controlled NGN network;

在步骤 201 , TRC-FE接收来自 PD-FE的为传送网业务分配资源的请求；在步骤 202, TRC-FE分析该传送网业务所经过的运营商边缘设备之间的标签交换路径是否建立； In step 201, the TRC-FE receives a request for allocating resources for the transport network service from the PD-FE; in step 202, the TRC-FE analyzes whether the label switching path between the operator edge devices that the transport network service passes through is established;

在步骤 203, 若标签交换路径已经建立，则判断其是否满足传送网业务的资源要求；若是，则转入步骤 210, 若否，则转入步骤 204; In step 203, if the label switching path has been established, it is determined whether it meets the resource requirements of the transport network service; if yes, then proceeds to step 210, and if not, proceeds to step 204;

在步骤 204,在已建立的标签交换路径不满足传送网业务的资源要求或者标签交换路径没有建立的情况下， TRC-FE向 PCE发起路径计算请求，以选择所述传送网业务所经过运营商边缘设备之间的标签交换路径； In step 204, if the established label switching path does not satisfy the resource requirement of the transport network service or the label switching path is not established, the TRC-FE initiates a path calculation request to the PCE to select the transport network service to pass through the operator. Label switching path between edge devices;

在步骤 205, TRC-FE接收来自 PCE的路径计算结果，获取路径信息；需要说明的是，这里的路径信息，可以是全部的路径信息，也可以是部分的路径信在步骤 206, 根据所述 TRC-FE管理的传送网类型，获取对应的资源信息；在步骤 207, TRC-FE向运营商边缘设备发起命令以建立标签交换路径，或者通过 PD-FE向运营商设备发起路径建立命令，所述命令中携带有资源信息，包括有：业务标识符、源运营商边缘设备、目的运营商边缘设备、和 /或路径信息、标签、网络 QOS参数、保护关系、优先级等参数； In step 205, the TRC-FE receives the path calculation result from the PCE, and obtains the path information. It should be noted that the path information herein may be all path information, or may be part of the path information, in step 206, according to the The transport network type managed by the TRC-FE acquires corresponding resource information; in step 207, the TRC-FE initiates a command to the operator edge device to establish a label switching path, or A path establishment command is sent to the carrier device by using the PD-FE, where the command carries the resource information, including: the service identifier, the source carrier edge device, the destination carrier edge device, and/or the path information, the label, Network QOS parameters, protection relationships, priorities, etc.

需要说明的是，在此步骤中，所述命令中是否携带路径信息，需要根据步骤 205中 PCE是否向 TRC-FE返回了全部的路径信息而定； It should be noted that, in this step, whether the path information is carried in the command needs to be determined according to whether the PCE returns all path information to the TRC-FE in step 205;

若在步骤 205 , PCE计算出路径后，就将全部的路径信息返回给 TRC-FE, 则步骤 207中， TRC-FE将路径信息携带在所述命令中，直接发送给运营商设备，或者通过 PD-FE发送给运营商设备；具体处理流程是： TRC-FE收到了 PD-FE 的资源请求后向 PCE发起路径计算请求（含业务标识符）， PCE计算完毕后，返回全部的路径信息， TRC-FE收到了路径信息后，直接向运营商设备发起标签交换路径建立命令，或者通过 PD-FE向运营商设备发起标签交换路径建立命令，在该命令中包含所述路径信息； If the path information is returned to the TRC-FE after the PCE calculates the path in step 205, the TRC-FE carries the path information in the command, and directly sends the path information to the carrier device, or The PD-FE is sent to the carrier device. The specific processing procedure is as follows: After receiving the resource request of the PD-FE, the TRC-FE initiates a path calculation request (including a service identifier) to the PCE. After the PCE is calculated, all the path information is returned. After receiving the path information, the TRC-FE directly initiates a label switching path establishment command to the operator equipment, or initiates a label switching path establishment command to the operator equipment through the PD-FE, where the path information is included in the command;

若在步骤 205, PCE计算出路径后，只是将部分的路径信息返回给 TRC-FE, 则步骤 207中， TRC-FE在所述命令中不携带路径信息；具体处理流程是: TRC-FE 收到了 PD-FE的资源请求后向 PCE发起路径计算请求（含业务标识符）， PCE 计算完毕后，并不返回全部的路径信息，而是告诉 TRC-FE是否有可用路径，当 TRC-FE收到了肯定的信息后，向运营商设备发起标签交换路径建立命令，或者通过 PD-FE向运营商设备发起标签交换路径建立命令，在该命令中不包含路径信息。当运营商设备收到该命令后，向 PCE发起路径计算请求， PCE再根据业务标识符返回详细路径信息。 If the path information is returned to the TRC-FE after the PCE calculates the path in step 205, the TRC-FE does not carry the path information in the command in step 207; the specific processing flow is: TRC-FE After the resource request of the PD-FE is sent to the PCE, a path calculation request (including the service identifier) is initiated. After the PCE is calculated, the path information is not returned, but the TRC-FE is notified whether the available path is available. After the affirmative information is obtained, the label switching path establishment command is initiated to the operator equipment, or the label switching path establishment command is initiated to the operator equipment by using the PD-FE, and the path information is not included in the command. After receiving the command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information according to the service identifier.

在步骤 208, 源运营商边缘设备接收到标签交换路径建立命令后，向目的运营商边缘设备发起建立运营商边缘设备之间的标签交换路径信令； After receiving the label switching path establishment command, the source operator edge device initiates establishment of label switching path signaling between the operator edge devices to the destination operator edge device.

在步骤 209, 根据所述命令中携带的资源信息以及路径信息，建立源运营商边缘设备和目的运营商边缘设备之间的标签交换路径； In step 209, a label switching path between the source operator edge device and the destination carrier edge device is established according to the resource information and the path information carried in the command.

在步骤 210, TRC-FE 直接向运营商边缘设备发送建立支路 /伪线通道的命令，或者 TRC-FE向 PD-FE反馈资源情况，再由 PD-FE下发建立支路 /伪线通道的命令到运营商边缘设备； In step 210, the TRC-FE directly sends a command to establish a tributary/pseudo-line channel to the operator edge device, or the TRC-FE feeds back the resource status to the PD-FE, and then the PD-FE sends the tributary/pseudo-line channel. Command to the operator edge device;

在步骤 211 , 运营商边缘设备将业务标识符所对应的支路 /伪线通道与该业务标识符所对应的标签交换路径进行绑定，以实现 PD-FE对业务的管理和控制。 In step 211, the operator edge device binds the branch/pseudo-line channel corresponding to the service identifier to the label switching path corresponding to the service identifier, so as to implement PD-FE management and control of the service.

本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法，通过在 RACF控制的 NGN网络中纳入传送网的 PCE/GMPLS, PCE/GMPLS与An implementation method for transmitting a service in a RACF controlled NGN network provided by an embodiment of the present invention Incorporating PCE/GMPLS, PCE/GMPLS and the transport network in the RACF-controlled NGN network

NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并且通过将支路 /伪线通道标签交换路径进行绑定，实现了 PD-FE对传送网业务的管理和控制，统一了业务运营***。 The resource control function entities in the NGN network work together to centrally manage and control the transport network services, and implement the PD-FE management of the transport network services by binding the branch/pseudo-line channel label switching paths. Control and unify the business operation system.

参见图 4, 是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法第三实施例的流程示意图。 FIG. 4 is a schematic flowchart diagram of a third embodiment of a method for implementing a service in an RACF controlled NGN network according to an embodiment of the present invention.

在步骤 300 , 在 RACF控制的 NGN网络中纳入传送网的 PCE/GMPLS , 以实现 RACF控制的 NGN网络对传送网络的管理和控制； In step 300, PCE/GMPLS of the transport network is included in the RAGN-controlled NGN network to implement management and control of the transport network by the RACF-controlled NGN network;

在步骤 301 , TRC-FE接收来自 PD-FE的为传送网业务分配资源的请求；在步骤 302, TRC-FE分析所述 NGN业务所经过的运营商边缘设备之间的标签交换路径是否建立； In step 301, the TRC-FE receives a request for allocating resources for the transport network service from the PD-FE. In step 302, the TRC-FE analyzes whether the label switching path between the operator edge devices through which the NGN service passes is established.

在步骤 303, 若标签交换路径已经建立，则判断其是否满足传送网业务的资源要求； In step 303, if the label switching path has been established, it is determined whether it meets the resource requirement of the transport network service;

在步骤 304,在已建立的标签交换路径不满足传送网业务的资源要求或者标签交换路径没有建立的情况下， TRC-FE向 PCE发起路径计算请求，以选择所述传送网业务所经过运营商边缘设备之间的标签交换路径；可选的，已经建立的标签交换路径满足传送网业务的资源要求，则 TRC-FE直接向运营商边缘设备发送建立支路 /伪线通道的命令，或者 TRC-FE向 PD-FE反馈资源情况，再由 PD-FE下发建立支路 /伪线通道的命令到运营商边缘设备；运营商边缘设备将业务标识符所对应的支路 /伪线通道与该业务标识符所对应的标签交换路径进行绑定，以实现 PD-FE对业务的管理和控制。 In step 304, if the established label switching path does not satisfy the resource requirement of the transport network service or the label switching path is not established, the TRC-FE initiates a path calculation request to the PCE to select the transport network service to pass through the operator. The label switching path between the edge devices; optionally, the established label switching path satisfies the resource requirements of the transport network service, and the TRC-FE directly sends a command to establish the branch/pseudo line channel to the operator edge device, or TRC - The FE feeds back the resource to the PD-FE, and the PD-FE sends a command to establish the tributary/pseudo-line channel to the operator edge device; the carrier edge device associates the branch/pseudo-line channel corresponding to the service identifier with The label switching path corresponding to the service identifier is bound to implement management and control of the PD-FE.

在步骤 305, TRC-FE接收来自 PCE的路径计算结果，获取路径信息；需要说明的是，这里的路径信息，可以是全部的路径信息，也可以是部分的路径信在步骤 306, 根据所述 TRC-FE管理的传送网类型，获取对应的资源信息；在步骤 307, TRC-FE直接向运营商边缘设备，或者通过 PD-FE向运营商边缘设备发起命令以建立标签交换路径，所述命令中携带有资源信息，包括有：业务标识符、源运营商边缘设备、目的运营商边缘设备、和 /或路径信息、标签、网络 QOS参数、保护关系、优先级等参数； In step 305, the TRC-FE receives the path calculation result from the PCE, and obtains the path information. It should be noted that the path information herein may be all path information, or may be part of the path information, in step 306, according to the The transport network type managed by the TRC-FE obtains the corresponding resource information. In step 307, the TRC-FE directly sends a command to the operator edge device or the PD-FE to the carrier edge device to establish a label switching path. The resource information includes: a service identifier, a source carrier edge device, a destination carrier edge device, and/or path information, a label, a network QOS parameter, a protection relationship, a priority, and the like;

需要说明的是，在此步骤中，所述命令中是否携带路径信息，需要根据步骤 305中 PCE是否向 TRC-FE返回了全部的路径信息而定； It should be noted that, in this step, whether the path information is carried in the command, according to the step Whether the PCE returns all the path information to the TRC-FE in step 305;

若在步骤 305 , PCE计算出路径后，就将全部的路径信息返回给 TRC-FE, 则步骤 307中， TRC-FE将路径信息携带在所述命令中，直接发送给运营商设备，或者通过 PD-FE将所述命令发送给运营商设备具体处理流程是： TRC-FE收到了 PD-FE的资源请求后向 PCE发起路径计算请求（含业务标识符 ), PCE计算完毕后，返回全部的路径信息， TRC-FE收到了路径信息后，直接向运营商设备发起标签交换路径建立命令，或者通过 PD-FE向运营商设备发起标签交换路径建立命令，在该命令中包含所述路径信息； If the path information is returned to the TRC-FE after the PCE calculates the path in step 305, the TRC-FE carries the path information in the command, and directly sends the path information to the carrier device, or The specific processing procedure for the PD-FE to send the command to the carrier device is as follows: After receiving the resource request of the PD-FE, the TRC-FE initiates a path calculation request (including a service identifier) to the PCE, and after the PCE is calculated, returns all the The path information, after receiving the path information, the TRC-FE directly initiates a label switching path establishment command to the operator equipment, or initiates a label switching path establishment command to the operator equipment through the PD-FE, where the path information is included in the command;

若在步骤 305 , PCE计算出路径后，只是将部分的路径信息返回给 TRC-FE, 则步骤 307 中， TRC-FE 在所述命令中不携带路径信息；具体处理流程是： TRC-FE收到了 PD-FE的资源请求后向 PCE发起路径计算请求（含业务标识符 ), PCE计算完毕后，并不返回全部的路径信息，而是告诉 TRC-FE是否有可用路径，当 TRC-FE收到了肯定的信息后，直接向运营商发起标签交换路径建立命令，或者通过 PD-FE向运营商设备发起标签交换路径建立命令，在该命令中不包含路径信息。当运营商设备收到该命令后，向 PCE发起路径计算请求， PCE 再根据业务标识符返回详细路径信息。 If the path information is returned to the TRC-FE after the PCE calculates the path in step 305, the TRC-FE does not carry the path information in the command in step 307. The specific processing flow is: TRC-FE After the resource request of the PD-FE is sent, the path calculation request (including the service identifier) is sent to the PCE. After the PCE is calculated, the path information is not returned, but the TRC-FE is notified whether the available path is available. After the affirmative information is obtained, the label switching path establishment command is directly sent to the operator, or the label switching path establishment command is initiated to the operator equipment through the PD-FE, and the path information is not included in the command. After receiving the command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information according to the service identifier.

在步骤 308 ,判断所经过的路径上的设备是否都是否支持通用多协议标签交换协议，若是，转入步骤 309; 若否，则转入步骤 310; In step 308, it is determined whether the devices on the path passed support the universal multi-protocol label exchange protocol, and if so, proceeds to step 309; if not, proceeds to step 310;

在步骤 309, TRC-FE直接向运营商边缘设备或者通过 PD-FE向运营商设备发起标签交换路径建立命令；此后的流程跟第一实施例和第二实施例相同，在此不再重复说明； In step 309, the TRC-FE initiates a label switching path establishment command directly to the carrier edge device or the PD-FE to the carrier device. The following procedure is the same as that of the first embodiment and the second embodiment, and the description is not repeated here. ;

在步骤 310, TRC-FE直接或者通过 PD-FE向标签交换路径所经过的所有运营商中间设备和边缘设备下发标签交换路径建立命令；所述命令中携带有资源信息； In step 310, the TRC-FE sends a label switching path establishment command to all the carrier intermediate devices and the edge device that the label switching path passes through the PD-FE; the command carries the resource information;

在步骤 311 , 所述运营商中间设备接收到所述命令后，根据其携带的资源信息配置节点标签交换表，建立伪线，配置虚连接组和流过滤表并将两者绑定；在步骤 312, 根据所述节点标签交换表以及路径信息，为所述传送网业务建立标签交换路径； After receiving the command, the operator intermediate device configures a node label switching table according to the resource information carried by the carrier, establishes a pseudowire, configures a virtual connection group and a flow filtering table, and binds the two; 312. Establish a label switching path for the transport network service according to the node label switching table and the path information.

在步骤 313 , 所述标签交换路径建立后， TRC-FE向 PD-FE反馈资源情况， PD-FE管理控制并传送所述传送网业务；本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法，通过在 RACF控制的 NGN网络中纳入传送网的 PCE/GMPLS, PCE/GMPLS与 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并且通过运营商中间设备建立伪线通道，并与标签交换路径进行绑定，实现了传送网业务的管理和控制，统一了业务运营***。 After the label switching path is established, the TRC-FE feeds back the resource status to the PD-FE, and the PD-FE manages and transmits the transport network service. The method for implementing the transmission service in the RACF-controlled NGN network provided by the embodiment of the present invention works by integrating the PCE/GMPLS of the transport network in the RACF-controlled NGN network, and the PCE/GMPLS works in cooperation with the resource control function entity in the NGN network. Centralized management and control of the transport network service, and establishment of a pseudowire channel through the intermediary device of the carrier, and binding with the label switching path, realizing the management and control of the transport network service, and unifying the service operation system.

参见图 5, 是本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现***的组成示意图。 FIG. 5 is a schematic structural diagram of an implementation system for transmitting a service in an RACF-controlled NGN network according to an embodiment of the present invention.

以下通过在 RACF控制的 NGN架构下对传送网络业务进行管理和控制的实施例，详细说明本实施例提供的***的组成和功能： The following describes the composition and functions of the system provided by this embodiment in detail by implementing an embodiment of managing and controlling the transport network service under the NGN architecture controlled by the RACF:

1、用户 CE1发起业务请求，方式可以是通过 PORTAL、 SIP信令等；业务控制实体 SCF收到该请求后根据本地用户签约数据和策略分析接纳该业务； 1. The user CE1 initiates a service request by using PORTAL, SIP signaling, etc.; after receiving the request, the service control entity SCF accepts the service according to the local user subscription data and policy analysis;

2、如果 SCF接纳该业务，则向对端用户发起业务请求。对端用户 CE2收到该请求后根据本地信息和策略判断是否接纳该业务； 2. If the SCF accepts the service, it initiates a service request to the peer user. After receiving the request, the peer user CE2 determines whether to accept the service according to local information and policies.

3、对端用户 CE2对业务请求进行响应； 3. The peer user CE2 responds to the service request.

4、如果对端用户 CE2接纳该业务，则 SCF向 PD-FE发起业务请求； 4. If the peer user CE2 accepts the service, the SCF initiates a service request to the PD-FE.

5、 PD-FE收到业务请求后，向 TRC-FE发起资源请求。 TRC-FE收到资源请求后，分析该业务所经过的运营商边缘设备（ PE, Provider Edge )之间的 TUNNEL LSP是否已经建立。如果已经建立，则判断是否满足资源要求； 5. After receiving the service request, the PD-FE initiates a resource request to the TRC-FE. After receiving the resource request, the TRC-FE analyzes whether the TUNNEL LSP between the carrier edge devices (PEs, Provider Edges) that the service passes through has been established. If it has been established, it is judged whether the resource requirement is met;

6、如果 PE之间的 TUNNEL LSP不满足或者没有建立 TUNNEL LSP, 则 TRC-FE向 PCE发起路径计算请求，以选择业务所经过的 PE间 TUNNEL LSP的路径。如果根据策略需要业务保护，则需要在两个 PE间计算两条路径，分别为工作路径和保护路径。 PCE随后将计算结果反馈给 TRC-FE; 6. If the TUNNEL LSP between the PEs is not met or the TUNNEL LSP is not established, the TRC-FE initiates a path calculation request to the PCE to select the path of the inter-PE TUNNEL LSP through which the service passes. If service protection is required according to the policy, you need to calculate two paths between the two PEs, namely the working path and the protection path. The PCE then feeds back the calculation results to the TRC-FE;

7、如果管理的是 PBB-TE/PBT网络，则 TRC-FE还要需要以前建立的业务和策略来确定 TUNNEL连接的 B-VLAN和 B-MAC。如果信令需要的是 IP地址， TRC-FE还要将 PCE计算出来的路径信息转化成 IP地址信息。如果有合适的路径，则 TRC-FE向 PE发起 TUNNEL LSP的建立命令，命令携带的参数为：业务标识符、源 PE节点、目的 PE节点、显式路由信息、 B- VLAN+B-MAC标签、网络 QOS参数、保护关系、优先级等信息；然后向两个 PE分别发起支路 /PW通道建立命令，命令携带的参数为业务标识符、目标 PE地址、网络 QOS参数、优先级、保护关系等。如果传送网元没有 GMPLS控制协议，则还需要向路径所经过的所有中间 P 节点发起 TUNNEL连接建立命令，命令参数为：目标 P节点地址、入端口号、入标签、出端口号、出标签、网络 QOS参数等，这里的标签是广义的标签，在 T-MPLS 层网络中，是 LSP标签；在 SDH网络中，是 VC12/VC3/VC4时隙标签；在光交叉网络中，是波长标签；在 PBB-TE/PBT网络中，是 VLAN+MAC标签。 7. If the PBB-TE/PBT network is managed, the TRC-FE also needs the previously established services and policies to determine the B-VLAN and B-MAC of the TUNNEL connection. If the signaling requires an IP address, the TRC-FE also converts the path information calculated by the PCE into IP address information. If there is a suitable path, the TRC-FE initiates a TUNNEL LSP establishment command to the PE. The parameters carried by the command are: service identifier, source PE node, destination PE node, explicit routing information, B-VLAN+B-MAC label. Information such as the network QOS parameters, the protection relationship, and the priority. Then, the BGP/PW channel establishment command is initiated to the two PEs. The parameters carried by the command are the service identifier, the destination PE address, the network QOS parameter, the priority, and the protection relationship. Wait. If the transport network element does not have a GMPLS control protocol, then all intermediate Ps that the path passes through are also required. The node initiates a TUNNEL connection establishment command, and the command parameters are: target P node address, ingress port number, ingress label, egress port number, outgoing label, network QOS parameter, etc., where the label is a generalized label, in the T-MPLS layer network. , is the LSP label; in the SDH network, it is the VC12/VC3/VC4 slot label; in the optical cross-network, it is the wavelength label; in the PBB-TE/PBT network, it is the VLAN+MAC label.

8、 PE的 GMPLS控制模块收到 TUNNEL LSP的建立命令后，发起建立 PE间的 TUNNEL LSP的信令，从而建立 PE-PE的 TUNNEL LSP; 收到支路/ PW通道建立命令后，建立 PW, 配置 VCG和业务流并将两者绑定； P节点收到 TUNNEL连接建立命令后，根据命令参数配置节点标签交换表。 8. After receiving the TUNNEL LSP establishment command, the PE GMPLS control module initiates the establishment of the TUNNEL LSP signaling between the PEs to establish the TUNNEL LSP of the PE-PE. After receiving the tributary/PW channel establishment command, the PW is established. Configure the VCG and the service flow and bind the two. After receiving the TUNNEL connection establishment command, the P node configures the node label exchange table according to the command parameters.

9、 TUNNE SP已经建立； 9. TUNNE SP has been established;

10、 TRC-FE根据已有资源情况或者新建资源结果向 PD-FE进行资源请求响应； 10. The TRC-FE performs a resource request response to the PD-FE according to the existing resource situation or the newly created resource result;

11、 PD-FE收到资源请求响应后，根据本地策略决定网络 QOS等参数，同时根据业务请求的内容，下发门控打开、关闭命令以及 QOS参数、业务标识符等； After receiving the resource request response, the PD-FE determines the parameters such as the network QOS according to the local policy, and issues the gating open and close command and the QOS parameter and the service identifier according to the content of the service request.

12、 PE节点收到门控命令后，如果是门控打开，则将该业务标识符所对应的支路/ PW通道与该业务标识符所对应的 TUNNEL LSP绑定起来； 12. After receiving the gating command, the PE node binds the tributary/PW channel corresponding to the service identifier to the TUNNEL LSP corresponding to the service identifier.

13、 PD-FE对业务请求进行响应； 13. The PD-FE responds to the service request;

14、业务控制实体对用户 CE1的业务请求进行响应； 14. The service control entity responds to the service request of the user CE1;

15、如果用户 CE1业务请求被接纳，则用户业务流量就可以在传送资源上进行传送；所谓的业务流，是不同于原有的 NGN下面的用户 IP流（由五元组标识：源地址，源端口号，目的地址，目的端口号，协议号），这里的流是用户流量透明的传送流，比如端口流，端口 +VLAN流等。这样，就不需要感知用户实际的业务流量数据。 15. If the user CE1 service request is accepted, the user service traffic can be transmitted on the transmission resource; the so-called service flow is different from the original user IP flow under the NGN (identified by the quintuple: source address, Source port number, destination address, destination port number, protocol number). The stream here is a transparent transport stream for user traffic, such as port flow, port + VLAN flow. In this way, there is no need to perceive the actual traffic data of the user.

所谓的 TUNNEL LSP,可以是 PE的线路接口间的 VC12/VC3/VC4等连接，也可以是 B-VLAN+D-MAC连接，也可以是 T-MPLS LSP。 The so-called TUNNEL LSP can be a VC12/VC3/VC4 connection between PE line interfaces, a B-VLAN+D-MAC connection, or a T-MPLS LSP.

所谓的线路到线路连接，可以是 P节点上东西两个方向上光线路接口板间 VC4/VC3/VC12交叉连接（SDH) , 也可以是 P节点上的标签交换连接（如 VLAN+MAC交换，或者 T-MPLSTUNNEL标签交换)，也可以是波长交换。所谓的支路/ PW, 可能是 PDH支路接口（如在 SDH/MSTP设备上的某一个或者多个 2M接口），也可能是 ATM/ETH等接口并将其封装映射到 VCG中，或者是某一个 AC接口并映射到 PW中（在 IETF PWE3工作组中定义)，该 PW可承载在 T-MPLS TUNNEL或者 PBT/PBB-TE TUNNEL上。 The so-called line-to-line connection can be a VC4/VC3/VC12 cross-connection (SDH) between the optical line interface boards in the east and west directions on the P node, or a label switching connection (such as VLAN+MAC exchange) on the P node. Or T-MPLS TUNNEL label switching), or wavelength switching. The so-called tributary / PW may be a PDH tributary interface (such as one or more 2M interfaces on an SDH/MSTP device), or an interface such as ATM/ETH and map its package to the VCG, or An AC interface is mapped to the PW (defined in the IETF PWE3 working group). The PW can be carried in T-MPLS. TUNNEL or PBT/PBB-TE TUNNEL.

所谓的支路/ PW与 TUNNEL LSP的绑定，是指将 PDH支路接***叉连接到线路上的某些 VC4/VC3/VC12, 或者将 ATM/ETH等接口所在的 VCG交缠连接到线路上的某些 VC4/VC3/VC12 , 或者将 ATM/ETH/PDH/FR等 PW映射到某个 TUNNEL LSP上。 The so-called branch/PW is bound to the TUNNEL LSP, which means that the PDH tributary interface is cross-connected to some VC4/VC3/VC12 on the line, or the VCG where the interface such as ATM/ETH is connected is connected to the line. Some VC4/VC3/VC12, or map PWs such as ATM/ETH/PDH/FR to a TUNNEL LSP.

在整个处理过程中，在各功能实体的接口协议中都需要携带业务标识符这个参数，业务标识符是由 SCF分配的。当 PE收到门控命令后，将该业务标识符对应的 PW/支路通道与 TUNNEL LSP关联起来。一个 TUNNEL LSP可能会对应多个业务标识符，只需要业务标识符相同就可以关联起来。 Throughout the process, the service identifier is required to be carried in the interface protocol of each functional entity, and the service identifier is allocated by the SCF. When the PE receives the gating command, it associates the PW/tributary channel corresponding to the service identifier with the TUNNEL LSP. A TUNNEL LSP may correspond to multiple service identifiers, and only need to have the same service identifier to be associated.

在资源的收集上，可以采用 PCE已有的接口来进行。 In the collection of resources, the existing interface of PCE can be used.

本发明实施例提供的在 RACF控制的 NGN网络中传送业务的实现方法和系统，通过在 RACF控制的 NGN网络中纳入传送网的 PCE/GMPLS功能实体，所述 PCE/GMPLS功能实体与 RACF控制的 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并建立标签交换路径传送所述业务；在 RACF控制的 NGN网络中构建高可用性的传送网，统一了业务运营***。 An implementation method and system for transmitting a service in a RACF-controlled NGN network provided by an embodiment of the present invention, by including a PCE/GMPLS functional entity of a transport network in a RACF-controlled NGN network, the PCE/GMPLS functional entity and the RACF-controlled entity The resource control function entities in the NGN network work together to centrally manage and control the transport network services, and establish a label switched path to transmit the services; construct a highly available transport network in the RACF-controlled NGN network to unify the service operations. system.

需要说明的是，在 RACS控制的 NGN中纳入传送网的 PCE/GMPLS功能实体，实现在 RACS控制的 NGN网络中传送业务的方法跟在 RACF控制的 NGN 网络中传送业务的实现方法原理相同。 It should be noted that the PCE/GMPLS function entity of the transport network is included in the NGN controlled by the RACS, and the method for transmitting the service in the NGN network controlled by the RACS is the same as the method for implementing the transport service in the NGN network controlled by the RACF.

参见图 6, 是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法第一实施例的流程示意图。 FIG. 6 is a schematic flowchart diagram of a first embodiment of a method for implementing a service in a RACS controlled NGN network according to an embodiment of the present invention.

在步骤 400, 在 RACS控制的 NGN网络中纳入传送网的 PCE/GMPLS , 以实现 RACS网络对传送网络的管理和控制； In step 400, the PCE/GMPLS of the transport network is included in the NGN network controlled by the RACS to implement management and control of the transport network by the RACS network;

在步骤 401 , RACS 控制的 NGN 网络中的接入资源和接纳控制执行功能 ( A-RACF, Access-Resource and Admission Control Function )接收来自基于业务的策略决策功能实体（ SPDF, Service-based Policy Decision Function )的为 RACS 业务分配资源的请求； In step 401, the access resource and admission control execution function (A-RACF, Access-Resource and Admission Control Function) in the RACS controlled NGN network receives a service-based policy decision function entity (SPDF). a request to allocate resources for the RACS service;

在步骤 402, A-RACF分析所述传送网业务所经过的运营商边缘设备之间的标签交换路径是否建立； At step 402, the A-RACF analyzes whether a label switching path between the carrier edge devices through which the transport network service passes is established;

在步骤 403, 若标签交换路径已经建立，则判断其是否满足传送网业务的资源要求；在步骤 404,在已建立的标签交换路径不满足传送网业务的资源要求或者标签交换路径没有建立的情况下， A-RACF向 PCE发起路径计算请求，以选择所述传送网业务所经过运营商边缘设备之间的标签交换路径；可选的，在已建立的标签交换路径满足传送网业务的资源要求时，使用已经建立的标签交换路径，管理控制并传送所述传送网业务。 In step 403, if the label switching path has been established, it is determined whether it meets the resource requirement of the transport network service; In step 404, if the established label switching path does not satisfy the resource requirement of the transport network service or the label switching path is not established, the A-RACF initiates a path calculation request to the PCE to select the transport network service to pass through the operator. The label switching path between the edge devices; optionally, when the established label switching path satisfies the resource requirements of the transport network service, the established label switching path is used to manage and transmit the transport network service.

在步骤 405, A-RACF接收来自 PCE的路径计算结果，获取路径信息；需要说明的是，这里的路径信息，可以是全部的路径信息，也可以是部分的路径信息； In step 405, the A-RACF receives the path calculation result from the PCE, and obtains the path information. It should be noted that the path information herein may be all path information or part of the path information;

在步骤 406, 根据所述 A-RACF管理的传送网类型，获取对应的资源信息；在步骤 407, A-RACF向运营商边缘设备发起命令以建立标签交换路径，或者通过 SPDF向运营商设备发起命令以建立标签交换路径，所述命令中携带有资源信息，包括有：业务标识符、源运营商边缘设备、目的运营商边缘设备、和 / 或路径信息、标签、网络 QOS参数、保护关系、优先级等参数； In step 406, the corresponding resource information is obtained according to the transport network type managed by the A-RACF. In step 407, the A-RACF initiates a command to the operator edge device to establish a label switching path, or initiates to the carrier device through the SPDF. The command is used to establish a label switching path, where the command carries resource information, including: a service identifier, a source carrier edge device, a destination carrier edge device, and/or path information, a label, a network QOS parameter, a protection relationship, Priority and other parameters;

需要说明的是，在此步骤中，所述命令中是否携带路径信息，需要根据步骤 405中 PCE是否向 A-RACF返回了全部的路径信息而定； It should be noted that, in this step, whether the path information is carried in the command needs to be determined according to whether the PCE returns all path information to the A-RACF in step 405;

若在步骤 405 , PCE计算出路径后，就将全部的路径信息返回给 A-RACF, 则步骤 407中， A-RACF将路径信息携带在所述命令中发送给运营商设备，或者通过 SPDF发送给运营商设备，具体处理流程是： A-RACF收到了 SPDF的资源请求后向 PCE发起路径计算请求（含业务标识符）， PCE计算完毕后，返回全部的路径信息， A-RACF收到了路径信息后，直接向运营商设备发起标签交换路径建立命令或者通过 SPDF发起标签交换路径建立命令，在该命令中包含所述路径信息； If the path information is returned to the A-RACF after the PCE calculates the path in step 405, in step 407, the A-RACF carries the path information in the command and sends it to the operator equipment, or sends the message through the SPDF. For the carrier equipment, the specific processing procedure is as follows: After receiving the resource request of the SPDF, the A-RACF initiates a path calculation request (including the service identifier) to the PCE. After the PCE is calculated, all the path information is returned, and the A-RACF receives the path. After the information is sent, the label switching path establishment command is directly sent to the operator equipment or the label switching path establishment command is initiated by using the SPDF, and the path information is included in the command;

若在步骤 405 , PCE计算出路径后，只是将部分的路径信息返回给 A-RACF, 则步骤 407 中， A-RACF在所述命令中不携带路径信息；具体处理流程是： A-RACF收到了 SPDF的资源请求后向 PCE发起路径计算请求（含业务标识符 ), PCE计算完毕后，并不返回全部的路径信息，而是告诉 A-RACF是否有可用路径，当 A-RACF收到了肯定的信息后，向运营商设备发起标签交换路径建立命令，或者通过 SPDF向运营商设备发起标签交换路径建立命令，在该命令中不包含路径信息。当运营商设备收到该命令后，向 PCE发起路径计算请求， PCE再根据业务标识符返回详细路径信息。在步骤 408, 源运营商边缘设备接收到所述标签交换路径建立命令后，向目的运营商边缘设备发起建立运营商边缘设备之间的标签交换路径信令； If, in step 405, the PCE calculates the path and returns only part of the path information to the A-RACF, in step 407, the A-RACF does not carry the path information in the command; the specific processing flow is: A-RACF After the resource request of the SPDF, the path calculation request (including the service identifier) is initiated to the PCE. After the PCE is calculated, the path information is not returned, but the A-RACF is told whether there is an available path. When the A-RACF receives the affirmation After the information, a label switching path establishment command is initiated to the operator equipment, or a label switching path establishment command is initiated to the operator equipment through the SPDF, and the path information is not included in the command. After receiving the command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information according to the service identifier. After receiving the label switching path establishment command, the source operator edge device initiates establishment of label switching path signaling between the operator edge devices to the destination operator edge device.

在步骤 409, 根据所述命令中携带的资源信息以及路径信息，建立源运营商边缘设备和目的运营商边缘设备之间的标签交换路径； In step 409, a label switching path between the source operator edge device and the destination carrier edge device is established according to the resource information and the path information carried in the command.

在步骤 410, 所述标签交换路径建立后，管理控制并传送所述传送网业务；本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法，通过在 RACS控制的 NGN网络中纳入传送网的 PCE/GMPLS, PCE/GMPLS与 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并建立标签交换路径以承载传送网业务；在 NGN网络中构建高可用性的传送网，统一了业务运营***。 After the label switching path is established, the management and control of the transport network service is performed. The method for implementing the transport service in the RACS-controlled NGN network provided by the embodiment of the present invention is included in the RACS-controlled NGN network. PCE/GMPLS of the transport network, PCE/GMPLS works in conjunction with the resource control function entity in the NGN network to centrally manage and control the transport network services, and establish a label switched path to carry transport network services; The transport network for availability unifies the business operations system.

参见图 7, 是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法第二实施例的流程示意图。 FIG. 7 is a schematic flowchart diagram of a second embodiment of a method for implementing a service in a RACS controlled NGN network according to an embodiment of the present invention.

在步骤 500,在 RACS控制的 NGN网络中纳入 PCE/GMPLS, 以实现 RACS 网络对传送网络的管理和控制； In step 500, PCE/GMPLS is included in the NGN network controlled by the RACS to implement management and control of the transport network by the RACS network;

在步骤 501 , A-RACF接收来自基于 SPDF的为 RACS业务分配资源的请求；在步骤 502, A-RACF分析所述 RACS业务所经过的运营商边缘设备之间的标签交换路径是否建立； In step 501, the A-RACF receives a request for allocating resources for the RACS service based on the SPDF. In step 502, the A-RACF analyzes whether the label switching path between the carrier edge devices through which the RACS service passes is established.

在步骤 503,若标签交换路径已经建立，则判断其是否满足传送 RACS业务的资源要求；若是，则转入步骤 510, 若否，则转入步骤 504; In step 503, if the label switching path has been established, it is determined whether it meets the resource requirement for transmitting the RACS service; if yes, then proceeds to step 510, and if not, proceeds to step 504;

在步骤 504,在不满足传送 RACS业务的资源要求或者标签交换路径没有建立的情况下， A-RACF向 PCE发起路径计算请求，以选择所述 RACS业务所经过运营商边缘设备之间的标签交换路径； At step 504, the A-RACF initiates a path computation request to the PCE to select a label exchange between the carrier edge devices of the RACS service if the resource requirements for transmitting the RACS service are not met or the label switched path is not established. Path

在步骤 505, A-RACF接收来自 PCE的路径计算结果，获取路径信息；需要说明的是，这里的路径信息，可以是全部的路径信息，也可以是部分的路径信息； In step 505, the A-RACF receives the path calculation result from the PCE, and obtains the path information. It should be noted that the path information herein may be all path information or part of the path information.

在步骤 506, 根据所述 A-RACF管理的传送网类型，获取对应的资源信息；在步骤 507 , A-RACF直接向运营商边缘设备发起命令以建立标签交换路径，或者通过 SPDF向运营商边缘设备发起命令以建立标签交换路径，所述命令中携带有资源信息，包括有：业务标识符、源运营商边缘设备、目的运营商边缘设备、和 /或路由信息、标签、网络 QOS参数、保护关系、优先级等参数；需要说明的是，在此步骤中，所述命令中是否携带路径信息，需要根据步骤 505中 PCE是否向 A-RACF返回了全部的路径信息而定； In step 506, the corresponding resource information is obtained according to the transport network type managed by the A-RACF. In step 507, the A-RACF directly sends a command to the operator edge device to establish a label switching path, or to the operator edge through the SPDF. The device initiates a command to establish a label switching path, where the command carries resource information, including: a service identifier, a source carrier edge device, a destination carrier edge device, and/or routing information, a label, a network QOS parameter, and a protection. Relationship, priority, etc. It should be noted that, in this step, whether the path information is carried in the command needs to be determined according to whether the PCE returns all the path information to the A-RACF in step 505;

若在步骤 505 , PCE计算出路径后，就将全部的路径信息返回给 A-RACF, 则步骤 507中， A-RACF将路径信息携带在所述命令中，直接发送给运营商设备，或者通过 SPDF将所述命令发送给运营商设备，具体处理流程是： A-RACF收到了 SPDF的资源请求后向 PCE发起路径计算请求（含业务标识符）， PCE计算完毕后，返回全部的路径信息， A-RACF收到了路径信息后，直接向运营商设备发起标签交换路径建立命令或者通过 SPDF 向运营商设备发起标签交换路径建立命令，在该命令中包含所述路径信息； If the path information is returned to the A-RACF after the PCE calculates the path in step 505, the A-RACF carries the path information in the command, and directly sends the path information to the carrier device, or The SPDF sends the command to the operator equipment. The specific processing procedure is as follows: After receiving the resource request of the SPDF, the A-RACF initiates a path calculation request (including the service identifier) to the PCE. After the PCE is calculated, all the path information is returned. After receiving the path information, the A-RACF directly initiates a label switching path establishment command to the operator equipment or initiates a label switching path establishment command to the operator equipment through the SPDF, where the path information is included in the command;

若在步骤 505, PCE计算出路径后，只是将部分的路径信息返回给 A-RACF, 则步骤 507 中， A-RACF在所述命令中不携带路径信息；具体处理流程是： A-RACF收到了 SPDF的资源请求后向 PCE发起路径计算请求（含业务标识符 ), PCE计算完毕后，并不返回全部的路径信息，而是告诉 A-RACF是否有可用路径，当 A-RACF收到了肯定的信息后，直接向运营商设备发起标签交换路径建立命令或者通过 SPDF向运营商设备发起标签交换路径建立命令，在该命令中不包含路径信息。当运营商设备收到该命令后，向 PCE发起路径计算请求， PCE 再根据业务标识符返回详细路径信息。 If, in step 505, the PCE calculates the path and returns only part of the path information to the A-RACF, in step 507, the A-RACF does not carry the path information in the command; the specific processing flow is: A-RACF After the resource request of the SPDF, the path calculation request (including the service identifier) is initiated to the PCE. After the PCE is calculated, the path information is not returned, but the A-RACF is told whether there is an available path. When the A-RACF receives the affirmation After the information is sent, the label switching path establishment command is directly sent to the operator equipment or the label switching path establishment command is initiated to the operator equipment through the SPDF, and the path information is not included in the command. After receiving the command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information according to the service identifier.

在步骤 508, 源运营商边缘设备接收到所述标签交换路径建立命令后，向目的运营商边缘设备发起建立运营商边缘设备之间的标签交换路径信令； After receiving the label switching path establishment command, the source operator edge device initiates label switching path signaling between the operator edge devices to the destination carrier edge device.

在步骤 509, 根据所述命令中携带的资源信息以及路径信息，建立源运营商边缘设备和目的运营商边缘设备之间的标签交换路径； In step 509, a label switching path between the source operator edge device and the destination carrier edge device is established according to the resource information and the path information carried in the command.

在步骤 510, A-RACF直接向运营商边缘设备发送建立支路 /伪线通道的命令，或者 A-RACF向 SPDF反馈资源可获得信息，再由 SPDF下发建立支路 /伪线通道的命令到运营商边缘设备； In step 510, the A-RACF directly sends a command to establish a tributary/pseudo-line channel to the operator edge device, or the A-RACF feeds back resources to the SPDF to obtain information, and then the SPDF sends a command to establish a tributary/pseudo-line channel. To the operator's edge equipment;

在步骤 511 , 运营商边缘设备将业务标识符所对应的支路 /伪线通道与该业务标识符所对应的标签交换路径进行绑定，以实现 SPDF对业务的管理和控制。 In step 511, the operator edge device binds the branch/pseudo-line channel corresponding to the service identifier with the label switching path corresponding to the service identifier, so as to implement management and control of the service by the SPDF.

本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法，通过在 RACS控制的 NGN网络中纳入传送网的 PCE/GMPLS, PCE/GMPLS与 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并且通过将支路 /伪线通道标签交换路径进行绑定，实现了 PD-FE对传送网业务的管理和控制，统一了业务运营***。 The method for implementing the transmission service in the RACS-controlled NGN network provided by the embodiment of the present invention works by integrating the PCE/GMPLS of the transport network in the NGS network controlled by the RACS, and the PCE/GMPLS works in cooperation with the resource control function entity in the NGN network. Centralized management and control of the transport network service, and the PD-FE pair transport network is realized by binding the branch/pseudo-line channel label switching path. The management and control of the business unifies the business operation system.

参见图 8, 是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法第三实施例的流程示意图。 FIG. 8 is a schematic flowchart diagram of a third embodiment of a method for implementing a service in a RACS controlled NGN network according to an embodiment of the present invention.

在步骤 600,在 RACS控制的 NGN网络中纳入 PCE/GMPLS,以实现 RACS 控制的 NGN网络对传送网络的管理和控制； In step 600, PCE/GMPLS is included in the NGN network controlled by the RACS to implement management and control of the transport network by the NGN network controlled by the RACS;

在步骤 601 , A-RACF接收来自 SPDF的为传送网业务分配资源的请求；在步骤 602, A-RACF分析所述传送网业务所经过的运营商边缘设备之间的标签交换路径是否建立； In step 601, the A-RACF receives a request for allocating resources for the transport network service from the SPDF; in step 602, the A-RACF analyzes whether the label switching path between the operator edge devices through which the transport network service passes is established;

在步骤 603, 若标签交换路径已经建立，则判断其是否满足传送网业务的资源要求； In step 603, if the label switching path has been established, it is determined whether it meets the resource requirement of the transport network service;

在步骤 604,在已建立的标签交换路径不满足传送网业务的资源要求或者标签交换路径没有建立的情况下， A-RACF向 PCE发起路径计算请求，以选择所述传送网业务所经过运营商边缘设备之间的标签交换路径；可选的，在已建立的标签交换路径满足传送网业务的资源要求的情况下，Α-RACF直接向运营商边缘设备发送建立支路 /伪线通道的命令，或者 A-RACF向 SPDF反馈资源情况，再由 SPDF下发建立支路 /伪线通道的命令到运营商边缘设备；运营商边缘设备将业务标识符所对应的支路 /伪线通道与该业务标识符所对应的标签交换路径进行绑定，以实现 SPDF对业务的管理和控制。 In step 604, if the established label switching path does not satisfy the resource requirement of the transport network service or the label switching path is not established, the A-RACF initiates a path calculation request to the PCE to select the transport network service to pass through the operator. Label switching path between edge devices; optionally, if the established label switching path satisfies the resource requirements of the transport network service, the Α-RACF directly sends a command to establish a tributary/pseudo-line channel to the operator edge device. , or the A-RACF feeds back the resource to the SPDF, and then the SPDF sends a command to establish the tributary/pseudo-line channel to the operator edge device; the operator edge device associates the branch/pseudo-line channel corresponding to the service identifier with the The label switching path corresponding to the service identifier is bound to implement SPDF management and control of the service.

在步骤 605, A-RACF接收来自 PCE的路径计算结果，获取路径信息；需要说明的是，这里的路径信息，可以是全部的路径信息，也可以是部分的路径信息； In step 605, the A-RACF receives the path calculation result from the PCE, and obtains the path information. It should be noted that the path information herein may be all path information or part of the path information;

在步骤 606, 根据所述 A-RACF管理的传送网类型，获取对应的资源信息；在步骤 607 , A-RACF直接向运营商边缘设备发起命令以建立标签交换路径，或者通过 PSDF向运营商边缘设备发起命令以建立标签交换路径，所述命令中携带有资源信息，包括有：业务标识符、源运营商边缘设备、目的运营商边缘设备、和 /或路径信息、标签、网络 QOS参数、保护关系、优先级等参数； In step 606, the corresponding resource information is obtained according to the transport network type managed by the A-RACF. In step 607, the A-RACF directly sends a command to the operator edge device to establish a label switching path, or to the operator edge through the PSDF. The device initiates a command to establish a label switching path, where the command carries resource information, including: a service identifier, a source carrier edge device, a destination carrier edge device, and/or path information, a label, a network QOS parameter, and a protection. Relationship, priority, etc.

需要说明的是，在此步骤中，所述命令中是否携带路径信息，需要根据步骤 605中 PCE是否向 A-RACF返回了全部的路径信息而定； It should be noted that, in this step, whether the path information is carried in the command needs to be determined according to whether the PCE returns all path information to the A-RACF in step 605;

若在步骤 605, PCE计算出路径后，就将全部的路径信息返回给 A-RACF, 则步骤 607中， A-RACF将路径信息携带在所述命令中，直接发送给运营商设备，或者通过 SPDF将所述命令中发送给运营商设备；具体处理流程是： A-RACF 收到了 SPDF的资源请求后向 PCE发起路径计算请求（含业务标识符 ), PCE计算完毕后，返回全部的路径信息， A-RACF收到了路径信息后，直接向运营商设备发起标签交换路径建立命令，或者通过 SPDF向运营商设备发起标签交换路径建立命令，在该命令中包含所述路径信息； If the path information is returned to the A-RACF after the PCE calculates the path in step 605, the A-RACF carries the path information in the command and directly sends the path information to the carrier device. Or send the command to the operator equipment through SPDF; the specific processing flow is: After receiving the resource request of the SPDF, the A-RACF initiates a path calculation request (including the service identifier) to the PCE, and after the PCE is calculated, returns all the After the path information is received, the A-RACF initiates a label switching path establishment command directly to the operator equipment, or initiates a label switching path establishment command to the operator equipment through the SPDF, where the path information is included in the command;

若在步骤 605 , PCE计算出路径后，只是将部分的路径信息返回给 A-RACF, 则步骤 607 中， A-RACF在所述命令中不携带路径信息；具体处理流程是： A-RACF收到了 SPDF的资源请求后向 PCE发起路径计算请求（含业务标识符 ), PCE计算完毕后，并不返回全部的路径信息，而是告诉 A-RACF是否有可用路径，当 A-RACF收到了肯定的信息后，直接向运营商设备发起标签交换路径建立命令，或者通过 SPDF向运营商设备发起标签交换路径建立命令，在该命令中不包含路径信息。当运营商设备收到该命令后，向 PCE发起路径计算请求， PCE 再根据业务标识符返回详细路径信息。 If the path information is returned to the A-RACF after the PCE calculates the path in step 605, the A-RACF does not carry the path information in the command in step 607; the specific processing flow is: A-RACF After the resource request of the SPDF, the path calculation request (including the service identifier) is initiated to the PCE. After the PCE is calculated, the path information is not returned, but the A-RACF is told whether there is an available path. When the A-RACF receives the affirmation After the information is sent, the label switching path establishment command is directly sent to the carrier device, or the label switching path establishment command is initiated to the operator device through the SPDF, and the path information is not included in the command. After receiving the command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information according to the service identifier.

在步骤 608 ,判断所经过的路径上的设备是否都是否支持通用多协议标签交换协议，若是，转入步骤 609; 若否，则转入步骤 610; In step 608, it is determined whether the devices on the passed path support the universal multi-protocol label switching protocol, and if so, go to step 609; if not, go to step 610;

在步骤 609, A-RACF直接向运营商边缘设备，或者通过 SDPF向运营商边缘设备发起标签交换路径建立命令；此后的流程跟第一实施例和第二实施例相同，在此不再重复说明； In step 609, the A-RACF directly initiates a label switching path establishment command to the operator edge device or the SDPF to the carrier edge device. The following process is the same as the first embodiment and the second embodiment, and the description is not repeated here. ;

在步骤 610, A-RACF直接或者通过 SPDF向标签交换路径所经过的所有运营商中间设备和边缘设备下发标签交换路径建立命令；所述命令中携带有资源信息； In step 610, the A-RACF sends a label switching path establishment command to all the carrier intermediate devices and the edge device that the label switching path passes through the SPDF. The command carries the resource information.

在步骤 611 , 所述运营商中间设备接收到所述命令后，根据其携带的资源信息配置节点标签交换表，并建立伪线，配置虚连接组和流过滤表，并将两者绑定； After receiving the command, the operator intermediate device configures a node label switching table according to the resource information carried by the operator, and establishes a pseudowire, configures a virtual connection group and a flow filtering table, and binds the two;

在步骤 612, 根据所述节点标签交换表以及路径信息，为所述传送网业务建立标签交换路径； At step 612, a label switching path is established for the transport network service according to the node label switching table and the path information.

在步骤 613 , 所述标签交换路径建立后， A-RACF向 SPDF反馈资源可获得信息， SPDF管理控制并传送所述传送网业务； In step 613, after the label switching path is established, the A-RACF feeds back resources to the SPDF to obtain information, and the SPDF manages and transmits the transport network service;

本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法，通过在 RACS控制的 NGN网络中纳入传送网的 PCE/GMPLS , PCE/GMPLS与 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并且通过运营商中间设备建立伪线通道，并与标签交换路径进行绑定，实现了传送网业务的管理和控制，统一了业务运营***。 The method for implementing the transmission service in the RACS-controlled NGN network provided by the embodiment of the present invention is implemented by including the PCE/GMPLS, PCE/GMPLS and the transmission network in the RGS-controlled NGN network. The resource control function entities in the NGN network work together to centrally manage and control the transport network services, and establish a pseudowire channel through the carrier intermediate device, and bind to the label switching path to implement the management of the transport network service. Control and unify the business operation system.

参见图 10, 是本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现***的组成示意图。 FIG. 10 is a schematic structural diagram of an implementation system for transmitting a service in a RACS controlled NGN network according to an embodiment of the present invention.

1、用户 CE1发起业务请求，方式可以是通过 PORTAL、 SIP信令等；业务控制实体应用功能（AF, Application Function )收到该请求后根据本地用户签约数据和策略分析接纳该业务； 1. The user CE1 initiates a service request by using PORTAL, SIP signaling, etc.; after receiving the request, the service control entity application function (AF, Application Function) accepts the service according to the local user subscription data and policy analysis;

2、如果业务控制实体接纳该业务，则向对端用户发起业务请求。对端用户 CE2收到该请求后根据本地信息和策略判断是否接纳该业务； 2. If the service control entity accepts the service, initiate a service request to the peer user. After receiving the request, the peer user CE2 determines whether to accept the service according to local information and policies.

4、如果对端用户 CE2接纳该业务，则业务控制实体向基于业务的策略决策功能实体（ SPDF, Service-based Policy Decision Function )发起业务请求； 4. If the peer user CE2 accepts the service, the service control entity initiates a service request to the service-based policy decision function (SPDF);

5、 SPDF收到业务请求后，向接入资源和接纳控制功能实体（ A-RACF, Access-Resource and Admission Control Function )发起资源请求。 A-RACF收到资源请求后，分析该业务所经过的运营商边缘设备（ PE, Provider Edge )之间的 TUNNEL LSP是否已经建立。如果已经建立，则判断是否满足资源要求； 5. After receiving the service request, the SPDF initiates a resource request to the Access Resource and Admission Control Function (A-RACF, Access-Resource and Admission Control Function). After receiving the resource request, the A-RACF analyzes whether the TUNNEL LSP between the carrier edge devices (PEs, Provider Edges) through which the service passes has been established. If it has been established, it is judged whether the resource requirement is met;

6、如果 PE之间的 TUNNEL LSP不满足或者没有建立 TUNNEL LSP, 则 A-RACF向 PCE发起路径计算请求，以选择业务所经过的 PE间 TUNNEL LSP的路径。如果根据策略需要业务保护，则需要在两个 PE间计算两条路径，分别为工作路径和保护路径。 PCE随后将计算结果反馈给 A-RACF; 6. If the TUNNEL LSP between the PEs is not met or the TUNNEL LSP is not established, the A-RACF initiates a path calculation request to the PCE to select the path of the inter-PE TUNNEL LSP through which the service passes. If service protection is required according to the policy, you need to calculate two paths between the two PEs, namely the working path and the protection path. The PCE then feeds back the calculation results to the A-RACF;

7、如果管理的是 PBB-TE/PBT网络，则 A-RACF还要需要以前建立的业务和策略来确定 TUNNEL连接的 B-VLAN和 B-MAC。如果信令需要的是 IP地址， A-RACF还要将 PCE计算出来的路径信息转化成 IP地址信息。如果有合适的路径，则 A-RACF向 PE发起 TUNNEL LSP的建立命令，命令携带的参数为：业务标识符、源 PE节点、目的 PE节点、显式路由信息、 B-VLAN+B-MAC标签、网络 QOS参数、保护关系、优先级等信息；然后向两个 PE分别发起支路 /PW通道建立命令，命令携带的参数为业务标识符、目标 PE地址、网络 QOS参数、优先级、保护关系等。如果传送网元没有 GMPLS控制协议，则还需要向路径所经过的所有中间 P 节点发起 TUNNEL连接建立命令，命令参数为：目标 P节点地址、入端口号、入标签、出端口号、出标签、网络 QOS参数等，这里的标签是广义的标签，在 T-MPLS 层网络中，是 LSP标签；在 SDH网络中，是 VC12/VC3/VC4时隙标签；在光交叉网络中，是波长标签；在 PBB-TE/PBT网络中，是 VLAN+MAC标签。 7. If the PBB-TE/PBT network is managed, the A-RACF also needs the previously established services and policies to determine the B-VLAN and B-MAC of the TUNNEL connection. If the signaling requires an IP address, the A-RACF also converts the path information calculated by the PCE into IP address information. If there is a suitable path, the A-RACF initiates a TUNNEL LSP establishment command to the PE. The parameters carried by the command are: service identifier, source PE node, destination PE node, explicit routing information, B-VLAN+B-MAC label. Information such as the network QOS parameters, the protection relationship, and the priority. Then, the BGP/PW channel establishment command is initiated to the two PEs. The parameters carried by the command are the service identifier, the destination PE address, the network QOS parameter, the priority, and the protection relationship. Wait. If the transport network element does not have the GMPLS control protocol, it is also required to initiate a TUNNEL connection establishment command to all intermediate P nodes through which the path passes. The command parameters are: target P node address, ingress port number, and entry. Label, outbound port number, outgoing label, network QOS parameters, etc., where the label is a generalized label, in the T-MPLS layer network, is the LSP label; in the SDH network, is the VC12/VC3/VC4 time slot label; In the optical cross-network, it is the wavelength label; in the PBB-TE/PBT network, it is the VLAN+MAC label.

9、 TUNNE SP已经建立； 9. TUNNE SP has been established;

10、 A-RACF根据已有资源情况或者新建资源结果向 SPDF进行资源请求响应； 10. A-RACF responds to the SPDF resource request based on existing resources or new resource results;

11、 SPDF收到资源请求响应后，根据本地策略决定网络 QOS等参数，同时根据业务请求的内容，下发门控打开、关闭命令以及 QOS参数、业务标识符等； 11. After receiving the resource request response, the SPDF determines the parameters such as the network QOS according to the local policy, and issues the gating open and close command and the QOS parameter, the service identifier, etc. according to the content of the service request;

13、 SPDF对业务请求进行响应； 13. SPDF responds to business requests;

15、如果用户 CE1业务请求被接纳，则用户业务流量就可以在传送资源上进行传送；所谓的业务流，是不同于原有的 RACS下面的用户 IP流（由五元组标识：源地址，源端口号，目的地址，目的端口号，协议号），这里的流是用户流量透明的传送流，比如端口流，端口 +VLAN流等。这样，就不需要感知用户实际的业务流量数据。 15. If the user CE1 service request is accepted, the user service traffic can be transmitted on the transmission resource; the so-called service flow is different from the original user data flow under the RACS (identified by the quintuple: source address, Source port number, destination address, destination port number, protocol number). The stream here is a transparent transport stream for user traffic, such as port flow, port + VLAN flow. In this way, there is no need to perceive the actual traffic data of the user.

所谓的线路到线路连接，可以是 P节点上东西两个方向上光线路接口板间 VC4/VC3/VC12交叉连接（SDH) , 也可以是 P节点上的标签交换连接（如 VLAN+MAC交换，或者 T-MPLSTUNNEL标签交换)，也可以是波长交换。所谓的支路/ PW, 可能是 PDH支路接口（如在 SDH/MSTP设备上的某一个或者多个 2M接口），也可能是 ATM/ETH等接口并将其封装映射到 VCG中，或者是某一个 AC接口并映射到 PW中（在 IETF PWE3工作组中定义)，该 PW可承载在 T-MPLS TUNNEL或者 PBT/PBB-TE TUNNEL上。所谓的支路/ PW与 TUNNEL LSP的绑定，是指将 PDH支路接***叉连接到线路上的某些 VC4/VC3/VC12, 或者将 ATM/ETH等接口所在的 VCG交缠连接到线路上的某些 VC4/VC3/VC12 , 或者将 ATM/ETH/PDH/FR等 PW映射到某个 TUNNEL LSP上。 The so-called line-to-line connection can be a VC4/VC3/VC12 cross-connection (SDH) between the optical line interface boards in the east and west directions on the P node, or a label switching connection (such as VLAN+MAC exchange) on the P node. Or T-MPLS TUNNEL label switching), or wavelength switching. The so-called tributary / PW may be a PDH tributary interface (such as one or more 2M interfaces on an SDH/MSTP device), or an interface such as ATM/ETH and map its package to the VCG, or An AC interface is mapped to the PW (defined in the IETF PWE3 working group), and the PW can be carried on the T-MPLS TUNNEL or the PBT/PBB-TE TUNNEL. The so-called branch/PW is bound to the TUNNEL LSP, which means that the PDH tributary interface is cross-connected to some VC4/VC3/VC12 on the line, or the VCG where the interface such as ATM/ETH is connected is connected to the line. Some VC4/VC3/VC12, or map PWs such as ATM/ETH/PDH/FR to a TUNNEL LSP.

在整个处理过程中，在各功能实体的接口协议中都需要携带业务标识符这个参数，业务标识符是由 AF分配的。当 PE收到门控命令后，将该业务标识符对应的 PW/支路通道与 TUNNEL LSP关联起来。一个 TUNNEL LSP可能会对应多个业务标识符，只需要业务标识符相同就可以关联起来。 Throughout the process, the parameter of the service identifier is required to be carried in the interface protocol of each functional entity, and the service identifier is assigned by the AF. When the PE receives the gating command, it associates the PW/tributary channel corresponding to the service identifier with the TUNNEL LSP. A TUNNEL LSP may correspond to multiple service identifiers, and only need to have the same service identifier to be associated.

本发明实施例提供的在 RACS控制的 NGN网络中传送业务的实现方法和系统，通过在 RACS控制的 NGN网络中纳入 PCE/GMPLS , 所述 PCE/GMPLS与 RACS控制的 NGN网络中的资源控制功能实体协同工作，对传送网业务进行集中的管理和控制，并建立标签交换路径传送所述传送网业务；在 RACS控制的 NGN网络中构建高可用性的传送网，统一了业务运营***。 An implementation method and system for transmitting a service in a RACS-controlled NGN network provided by an embodiment of the present invention, by incorporating PCE/GMPLS in a RACS-controlled NGN network, resource control functions in the NGN network controlled by the PCE/GMPLS and the RACS The entities work together to centrally manage and control the transport network services, and establish a label switched path to transmit the transport network services; construct a highly available transport network in the RACS-controlled NGN network to unify the service operation system.

通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到本发明可借助软件加必需的硬件平台的方式来实现，当然也可以全部通过硬件来实施。基于这样的理解，本发明的技术方案对背景技术做出贡献的全部或者部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在存储介质中，如 ROM/RAM, 磁碟、光盘等，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）执行本发明各个实施例或者实施例的某些部分所述的方法。 Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary hardware platform, and of course, can also be implemented entirely by hardware. Based on such understanding, all or part of the technical solution of the present invention contributing to the background art may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM, a magnetic disk, an optical disk, or the like. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.

以上所揭露的仅为本发明一种实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。 The above is only an embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Claims

权利要求 Rights request

1、一种在下一代网络中传送业务的实现方法，其特征在于，包括：在 RACF控制的 NGN网络中纳入 PCE/GMPLS , 以实现 RACF对传送网络的管理和控制； An implementation method for transmitting a service in a next-generation network, comprising: incorporating PCE/GMPLS into an RAGN-controlled NGN network to implement management and control of a transport network by the RACF;

所述标签交换路径建立后，管理控制并传送所述传送网业务。 After the label switching path is established, the management controls and transmits the transport network service.

2、如权利要求 1所述的在下一代网络中传送业务的实现方法，其特征在于，所述 RACF 控制的 NGN 网络的传送资源控制功能实体 TRC-FE 与所述 PCE/GMPLS功能实体协同工作，对传送网业务进行集中的管理和控制，并指示运营商设备为传送网业务建立标签交换路径的步骤包括： 2. The method for implementing a transport service in a next generation network according to claim 1, wherein the transport resource control function entity TRC-FE of the RACF controlled NGN network cooperates with the PCE/GMPLS functional entity. The steps of centralized management and control of the transport network service, and instructing the operator equipment to establish a label switching path for the transport network service include:

所述 TRC-FE收到为传送网业务分配资源的请求后，向所述 PCE发起路径计算请求，获取路径信息； After receiving the request for allocating resources for the transport network service, the TRC-FE initiates a path calculation request to the PCE to obtain path information;

所述 TRC-FE 集中对各种类型的传送网进行资源管理和控制，并根据所述传送网的类型，获取相应的资源信息； The TRC-FE centrally manages and controls resources of various types of transport networks, and obtains corresponding resource information according to the type of the transport network;

结合所述路径信息和资源信息指示运营商设备建立标签交换路径。 The carrier information is instructed to establish a label switching path by combining the path information and the resource information.

3、如权利要求 2所述的在下一代网络中传送业务的实现方法，其特征在于，所述 TRC-FE收到为传送网业务分配资源的请求后，向所述 PCE发起路径计算请求的步骤包括： The method for implementing a service in a next-generation network according to claim 2, wherein the TRC-FE initiates a path calculation request to the PCE after receiving a request for allocating resources for the transport network service. The steps include:

TRC-FE接收来自策略决策功能实体 PD-FE的为传送网业务分配资源的请求； The TRC-FE receives a request for allocating resources for the transport network service from the policy decision function entity PD-FE;

TRC-FE 分析所述传送网业务所经过的运营商边缘设备之间的标签交换路径是否建立；如已经建立，则判断其是否满足传送网业务的资源要求； The TRC-FE analyzes whether the label switching path between the operator edge devices passing through the transport network service is established; if it has been established, it determines whether it meets the resource requirements of the transport network service;

如果已建立的标签交换路径不满足 RACF业务的资源要求或者标签交换路径没有建立， TRC-FE向 PCE发起路径计算请求，以选择所述 RACF传送网业务所经过运营商边缘设备之间的标签交换路径。 If the established label switching path does not satisfy the resource requirement of the RACF service or the label switching path is not established, the TRC-FE initiates a path calculation request to the PCE to select a label exchange between the carrier edge devices of the RACF transport network service. path.

4、如权利要求 3所述的在下一代网络中传送业务的实现方法，其特征在于，如果标签交换路径满足 RACF传送网业务的资源要求，则使用已经建立的标签交换路径，管理控制并传送所述 RACF传送网业务。 4. The method for implementing a transport service in a next generation network according to claim 3, wherein if the label switch path satisfies the resource requirement of the RACF transport network service, the established label switch path is used, and the control is controlled and transmitted. The RACF transports network services.

5、如权利要求 3所述的在下一代网络中传送业务的实现方法，其特征在于，所述 TRC-FE向所述 PCE发起路径计算请求后，获取路径信息的步骤，包括：The method for transmitting a service in a next-generation network according to claim 3, wherein the step of acquiring the path information after the TRC-FE initiates a path calculation request to the PCE includes:

PCE接收来自 TRC-FE的路径计算请求后进行路径计算； The PCE performs path calculation after receiving the path calculation request from the TRC-FE;

PCE计算完毕后，将全部路径信息返回给 TRC-FE。 After the PCE is calculated, all path information is returned to the TRC-FE.

6、如权利要求 5所述的在下一代网络中传送业务的实现方法，其特征在于，所述方法还包括： The method of claim 5, wherein the method further comprises:

TRC-FE接收所述全部路径信息，直接向运营商设备或者通过 PD-FE向运营商设备发起标签交换路径建立命令；所述标签交换路径建立命令中携带资源信息和路径信息； The TRC-FE receives the entire path information, and initiates a label switching path establishment command to the carrier device or the PD-FE to the carrier device. The label switching path establishment command carries the resource information and the path information.

源运营商边缘设备接收到所述标签交换路径建立命令后，向目的运营商边缘设备发起建立运营商边缘设备之间的标签交换路径信令，建立标签交换路径。 After receiving the label switching path establishment command, the source carrier edge device initiates label switching path signaling between the operator edge devices to establish a label switching path.

7、如权利要求 3所述的在下一代网络中传送业务的实现方法，其特征在于，所述 TRC-FE向所述 PCE发起路径计算请求后，获取路径信息的步骤，包括：The method for transmitting a service in a next-generation network according to claim 3, wherein the step of acquiring the path information after the TRC-FE initiates a path calculation request to the PCE includes:

PCE计算完毕后，通知 TRC-FE是否有可用路径。 After the PCE is calculated, notify the TRC-FE if there is a path available.

8、如权利要求 7所述的在下一代网络中传送业务的实现方法，其特征在于，所述方法还包括： The method of claim 7, wherein the method further comprises:

TRC-FE收到 PCE发送的有可用路径的信息后，直接向运营商设备或者通过 PD-FE向运营商设备发起标签交换路径建立命令，所述标签交换路径建立命令中携带资源信息，但不包含路径信息； After receiving the information about the available path sent by the PCE, the TRC-FE initiates a label switching path establishment command to the carrier device or the PD-FE, and the label switching path establishment command carries the resource information, but does not Contains path information;

运营商设备收到所述标签交换路径建立命令后，向 PCE发起路径计算请求， PCE返回详细路径信息； After receiving the label switching path establishment command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information.

根据所述资源信息和路径信息，运营商设备建立标签交换路径。 Based on the resource information and the path information, the carrier device establishes a label switching path.

9、一种在下一代网络中传送业务的实现方法，其特征在于，包括：在 RACS控制的 NGN网络中纳入 PCE/GMPLS , 以实现 RACS对传送网络的管理和控制； A method for implementing a service in a next-generation network, comprising: incorporating PCE/GMPLS into a RACS-controlled NGN network to implement RACS management and control of the transport network;

RACS 控制的 NGN 网络的接入资源和接纳控制功能 A-RACF 与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并指示运营商设备为传送网业务建立标签交换路径； The access resource and the admission control function A-RACF of the RACS-controlled NGN network work in cooperation with the PCE/GMPLS to centrally manage and control the transport network service, and instruct the operator equipment to establish a label switching path for the transport network service;

10、如权利要求 9所述的在下一代网络中传送业务的实现方法，其特征在于，所述 RACS控制的 NGN网络的 A-RACF与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并指示运营商设备为传送网业务建立标签交换路径的步骤包括： 10. The method for implementing a transport service in a next generation network according to claim 9, wherein the A-RACF of the RACS-controlled NGN network cooperates with the PCE/GMPLS to concentrate the transport network service. The management and control, and the step of instructing the operator equipment to establish a label switching path for the transport network service includes:

所述 A-RACF收到为传送网业务分配资源的请求后，向所述 PCE发起路径计算请求，获取路径信息； After receiving the request for allocating resources for the transport network service, the A-RACF initiates a path calculation request to the PCE to obtain path information;

所述 A-RACF集中对各种类型的传送网进行资源管理和控制，并根据所述传送网的类型，获取相应的资源信息； The A-RACF centrally performs resource management and control on various types of transport networks, and obtains corresponding resource information according to the type of the transport network;

11、如权利要求 10所述的在下一代网络中传送业务的实现方法，其特征在于，所述 A-RACF收到为传送网业务分配资源的请求后，向所述 PCE发起路径计算请求，获取路径信息的步骤包括： The method for implementing a service in a next-generation network according to claim 10, wherein the A-RACF initiates a path calculation request to the PCE after receiving a request for allocating resources for the transport network service, The steps to obtain path information include:

A-RACF接收来自基于业务的策略决策功能实体 SPDF为 RACS业务分配资源的请求； The A-RACF receives a request from the service-based policy decision function entity SPDF to allocate resources for the RACS service;

A-RACF分析所述 RACS业务所经过的运营商边缘设备之间的标签交换路径是否建立；如已经建立，则判断其是否满足传送网业务的资源要求； A-RACF analyzes whether the label switching path between the operator edge devices through which the RACS service passes is established; if it has been established, it determines whether it meets the resource requirements of the transport network service;

在已建立的标签交换路径不满足传送 RACS传送网业务的资源要求或者标签交换路径没有建立的情况下， A-RACF向 PCE发起路径计算请求，以选择所述 RACS传送网业务所经过运营商边缘设备之间的标签交换路径。 In the case that the established label switching path does not satisfy the resource requirement for transmitting the RACS transport network service or the label switching path is not established, the A-RACF initiates a path calculation request to the PCE to select the RACS transport network service to pass through the operator edge. Label switching path between devices.

12、如权利要求 10所述的在下一代网络中传送业务的实现方法，其特征在于，如果标签交换路径满足传送 RACS传送网业务的资源要求，则使用已经建立的标签交换路径，管理控制并传送所述 RACS传送网业务。 12. The method for implementing a service in a next generation network according to claim 10, characterized in that If the label switching path satisfies the resource requirement for transmitting the RACS transport network service, the established label switching path is used to manage and transmit the RACS transport network service.

13、如权利要求 11所述的在下一代网络中传送业务的实现方法，其特征在于，所述 A-RACF向所述 PCE发起路径计算请求后，获取路径信息的步骤包括：The method for transmitting a service in a next-generation network according to claim 11, wherein the step of acquiring path information after the A-RACF initiates a path calculation request to the PCE includes:

PCE接收来自 A-RACF的路径计算请求后进行路径计算； The PCE performs path calculation after receiving the path calculation request from the A-RACF;

PCE计算完毕后，将全部路径信息返回给 A-RACF。 After the PCE is calculated, return all path information to A-RACF.

14、如权利要求 13所述的在下一代网络中传送业务的实现方法，其特征在于，所述方法还包括： The method for transmitting a service in a next-generation network according to claim 13, wherein the method further comprises:

A-RACF接收所述全部路径信息，直接向运营商设备或者通过 SPDF向运营商设备发起命令以建立标签交换路径；所述命令中携带资源信息和路径信息；源运营商边缘设备接收到所述标签交换路径建立命令后，向目的运营商边缘设备发起建立运营商边缘设备之间的标签交换路径信令，建立标签交换路径。 The A-RACF receives the entire path information, and directly sends a command to the carrier device or the SPDF to the carrier device to establish a label switching path; the command carries the resource information and the path information; the source operator edge device receives the After the label switching path is established, the label switching path signaling between the operator edge devices is initiated to the destination carrier edge device to establish a label switching path.

15、如权利要求 14所述的在下一代网络中传送业务的实现方法，其特征在于，所述 A-RACF向所述 PCE发起路径计算请求后，获取路径信息的步骤包括：The method for transmitting a service in a next-generation network according to claim 14, wherein the step of acquiring path information after the A-RACF initiates a path calculation request to the PCE includes:

PCE计算完毕后，通知 A-RACF是否有可用路径。 After the PCE is calculated, notify A-RACF if there is a path available.

16、如权利要求 15所述的在下一代网络中传送业务的实现方法，其特征在于，所述方法还包括： The method for transmitting a service in a next-generation network according to claim 15, wherein the method further comprises:

A-RACF收到 PCE发送的有可用路径的信息后，直接向运营商设备或者通过 SPDF向运营商设备发起路径建立命令，所述命令中携带资源信息，但不包含路径信息； After receiving the information about the available path sent by the PCE, the A-RACF initiates a path establishment command to the carrier device or the SPDF to the carrier device, where the command carries the resource information, but does not include the path information.

运营商设备收到所述命令后，向 PCE发起路径计算请求， PCE返回详细路径信息； After receiving the command, the operator equipment initiates a path calculation request to the PCE, and the PCE returns detailed path information.

17、一种在下一代网络中传送业务的实现***，其特征在于，所述在 RACF 控制的 NGN网络中纳入了 PCE/GMPLS , 包括： 17. An implementation system for transmitting traffic in a next generation network, characterized in that said PCE/GMPLS is included in the controlled NGN network, including:

传送资源控制功能实体 TRC-FE, 用于与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并建立传送网业务的标签交换路径； a transmission resource control function entity TRC-FE, configured to work in cooperation with the PCE/GMPLS, centrally manage and control the transmission network service, and establish a label switching path of the transport network service;

策略决策功能实体 PD-FE, 用于在所述标签交换路径建立后，管理控制并传送所述传送网业务； a policy decision function entity PD-FE, configured to manage and control the transport network service after the label switching path is established;

18、如权利要求 17所述的在下一代网络中传送业务的实现***，其特征在于，所述传送资源控制功能实体 TRC-FE包括： 18. The implementation system for transmitting a service in a next generation network according to claim 17, wherein the transmission resource control function entity TRC-FE comprises:

路径信息获取模块，在收到为传送网业务分配资源的请求后，向所述 PCE 发起路径计算请求，获取路径信息； The path information obtaining module, after receiving the request for allocating resources for the transport network service, initiates a path calculation request to the PCE to obtain path information;

资源管理控制模块，用于集中对各种类型的传送网进行资源管理和控制；资源信息获取模块，用于根据所述传送网的类型，获取相应的资源信息以指示运营商设备标签交换路径标签交换路径。 a resource management control module, configured to centrally perform resource management and control on various types of transport networks; and a resource information obtaining module, configured to obtain corresponding resource information according to the type of the transport network, to indicate a label of the operator equipment label exchange path Exchange path.

19、如权利要求 18所述的在下一代网络中传送业务的实现***，其特征在于，所述路径信息获取模块包括： The implementation system for transmitting a service in a next-generation network according to claim 18, wherein the path information acquisition module comprises:

资源请求接收单元，用于接收来自策略决策功能实体 PD-FE的为 NGN业务分配资源的请求； a resource request receiving unit, configured to receive a request for allocating resources for the NGN service from the policy decision function entity PD-FE;

判断单元，用于分析所述传送网业务所经过的运营商边缘设备之间的标签交换路径是否建立；如已经建立，则判断其是否满足传送网业务的资源要求；路径计算请求单元，用于在判断单元判断出不满足传送网业务的资源要求或者标签交换路径没有建立的情况下，向 PCE发起路径计算请求，以选择所述传送网业务所经过运营商边缘设备之间的标签交换路径； a judging unit, configured to analyze whether a label switching path between the operator edge devices that the transport network service passes through is established; if yes, determine whether it meets a resource requirement of the transport network service; and a path calculation request unit, configured to: After the determining unit determines that the resource requirement of the transport network service is not satisfied or the label switching path is not established, the path calculation request is initiated to the PCE to select a label switching path between the edge devices of the transport network service;

路径信息获取单元，用于接收来自 PCE的路径计算结果，获取路径信息。 The path information obtaining unit is configured to receive a path calculation result from the PCE, and obtain path information.

20、如权利要求 19所述的在下一代网络中传送业务的实现***，其特征在于，所述资源信息获取模块包括： 20. The system for transmitting a service in a next generation network according to claim 19, characterized in that The resource information obtaining module includes:

资源信息获取单元，用于根据所述 TRC-FE管理的传送网类型，获取对应的资源信息； a resource information obtaining unit, configured to acquire corresponding resource information according to the transport network type managed by the TRC-FE;

资源信息发送单元，用于直接向运营商设备或者通过 PD-FE向运营商设备发起命令以指示运营商设备标签交换路径标签交换路径，所述命令中携带有资源信息。 The resource information sending unit is configured to directly send a command to the operator equipment or the PD-FE to the operator equipment to instruct the operator equipment label switching path label switching path, where the command carries the resource information.

21、一种在下一代网络中传送业务的实现***，其特征在于，所述在 RACS 控制的 NGN网络中纳入了 PCE/GMPLS , 包括： An implementation system for transmitting a service in a next-generation network, characterized in that the PCG/GMPLS is included in a RACS-controlled NGN network, including:

接入资源和接纳控制功能 A-RACF,用于与所述 PCE/GMPLS协同工作，对传送网业务进行集中的管理和控制，并建立传送网业务的标签交换路径；在所述标签交换路径建立后，管理控制并传送所述传送网业务； An access resource and admission control function A-RACF, configured to work in cooperation with the PCE/GMPLS, centrally manage and control the transport network service, and establish a label switching path of the transport network service; establish the label switching path Thereafter, managing and transmitting the transport network service;

22、如权利要求 21所述的在下一代网络中传送业务的实现***，其特征在于，所述 A-RACF包括： 22. The system for transmitting a service in a next generation network according to claim 21, wherein the A-RACF comprises:

23、如权利要求 22所述的在下一代网络中传送业务的实现***，其特征在于，所述路径信息获取模块包括： The system for transmitting a service in a next-generation network according to claim 22, wherein the path information acquiring module comprises:

资源请求接收单元，用于接收来自基于业务的策略决策功能实体 SPDF的为传送网业务分配资源的请求； a resource request receiving unit, configured to receive a request for allocating resources for the transport network service from the service-based policy decision function entity SPDF;

判断单元，用于分析所述传送网业务所经过的运营商边缘设备之间的标签交换路径是否建立；如已经建立，则判断其是否满足传送网业务的资源要求；路径计算请求单元，用于在判断单元判断出不满足传送网业务的资源要求或者标签交换路径没有建立的情况下，向 PCE发起路径计算请求，以选择所述传送网业务所经过运营商边缘设备之间的标签交换路径； a judging unit, configured to analyze a label between the operator edge devices that the transport network service passes through Whether the switching path is established; if it has been established, it is determined whether it satisfies the resource requirement of the transport network service; and the path calculation request unit is configured to: when the judging unit judges that the resource requirement of the transport network service is not satisfied or the label switching path is not established, And initiating a path calculation request to the PCE to select a label switching path between the carrier edge devices of the transport network service;

24、如权利要求 23所述的在下一代网络中传送业务的实现***，其特征在于，所述资源信息获取模块包括： The system for transmitting a service in a next-generation network according to claim 23, wherein the resource information obtaining module comprises:

资源信息获取单元，用于根据所述资源控制功能实体管理的传送网类型，获取对应的资源信息； a resource information obtaining unit, configured to acquire corresponding resource information according to a transport network type managed by the resource control function entity;

资源信息发送单元，用于直接向运营商设备或者通过 SPDF向运营商设备发起命令以指示运营商设备标签交换路径标签交换路径，所述命令中携带有资源信息。 The resource information sending unit is configured to send a command to the operator equipment directly to the operator equipment or through the SPDF to instruct the operator equipment label switching path label switching path, where the command carries the resource information.