WO2009023999A1 - Procédé pour établir un trajet d'extrémité à extrémité inter-domaine - Google Patents

Procédé pour établir un trajet d'extrémité à extrémité inter-domaine Download PDF

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Publication number
WO2009023999A1
WO2009023999A1 PCT/CN2007/003673 CN2007003673W WO2009023999A1 WO 2009023999 A1 WO2009023999 A1 WO 2009023999A1 CN 2007003673 W CN2007003673 W CN 2007003673W WO 2009023999 A1 WO2009023999 A1 WO 2009023999A1
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WO
WIPO (PCT)
Prior art keywords
domain
function unit
path establishment
interface
peer
Prior art date
Application number
PCT/CN2007/003673
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English (en)
Chinese (zh)
Inventor
Dingjun Li
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Publication of WO2009023999A1 publication Critical patent/WO2009023999A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14—Multichannel or multilink protocols

Definitions

  • the present invention relates to the field of next generation network communications, and in particular, to a cross-i or end-to-end path establishment method in a next generation network.
  • BACKGROUND Currently, how to implement end-to-end network resource allocation and control mechanism is one of the important issues of network resource admission control in the next generation network. This issue will become very important as the technology of the NGN network evolves and is gradually deployed.
  • the Rc interface is responsible for the collection of network topology and resource information of the Transport Functions and the collection of resource usage during the operation of the network;
  • the Rs interface is responsible for the interaction between the Service Control Layer (SCF) and the Policy Decision Function Unit (PD-FE) of the Transport Network Control Layer (RACF) for service session abstract resource requests;
  • the Rt interface is responsible for the policy decision function unit PD-FE and the transport network resource control function unit.
  • TRC-FE performing related interactions between request and allocation of session network resources
  • the Ri interface is responsible for cross-domain communication between PD-FEs
  • the Rp interface is responsible for intra-domain communication between TRC-FEs; the specific functions of each functional unit and interface are defined in the ITU-T Y.RACF standard and other related standards, and will not be repeated here (the Rj interface in Figure 1 is The interface set up to implement the session path establishment, which will be described later).
  • the other two methods can complete the end-to-end path establishment in some information that needs to be closely related to the transport network technology.
  • the end-to-end path cannot be established because:
  • PD-FE is a functional unit that focuses on the relevant policy decisions of the transport technology independent. It does not have information related to the carrier network technology and therefore cannot guide the establishment of the path related to the bearer network technology; The SCF also transmits service-related signaling, and does not have the ability to guide the establishment of paths related to the bearer network technology.
  • the manner in which the transport network itself establishes the end-to-end path of the domain along with the path signaling has scalability problems, which is not conducive to widespread deployment.
  • an effective scheme for establishing a 2-domain end-to-end path has not yet been proposed.
  • the main object of the present invention is to provide a cross-domain end-to-end path establishment solution, which can solve the problem in the related art due to the need to use information related to the bearer network technology.
  • a cross-domain end-to-end path establishment method is provided.
  • a first interface is set between the local domain policy decision function unit and the peer domain policy decision function unit, and is disposed between the local domain resource control function unit and the peer domain transmission resource control function unit.
  • the second interface is provided.
  • the method includes: Step S502: The local domain policy decision function unit sends a local path establishment request of the session to the local resource transmission control unit, and sends a session request to the peer domain policy decision function unit by using the first interface, where After receiving the path establishment request in the local domain of the session, the domain transmission resource control function unit performs path calculation and resource allocation in the local domain.
  • Step S504 The peer domain policy decision function unit receives the session request, and transmits the resource control function unit to the peer domain.
  • Step S506 the local resource transmission control unit And the peer-to-peer domain transmission resource control function unit unidirectionally or mutually informs the path establishment information and the path establishment information in the respective domain through the second interface, and informs the respective information about the path establishment information and the path establishment information.
  • the local domain policy decision function unit sends a local intra-domain boundary-to-boundary path establishment request of the session to the local resource transmission control function unit.
  • the peer end domain policy decision function unit sends the peer end domain inner boundary to the boundary path establishment request of the session to the peer end domain transmission resource control function unit.
  • the first interface is a Ri interface, and the first interface transmits information related to the service;
  • the second interface is an Rj interface, and the second interface transmits information related to the transport network.
  • the related information of the path establishment information includes: the egress node information, and the encapsulation information of the sent packet.
  • the above network is a next generation network.
  • FIG. 2 is a schematic diagram of ⁇ -domain end-to-end path establishment by a Ri interface between policy decision function units according to the related art
  • FIG. 3 is a diagram according to an embodiment of the present invention. Schematic diagram of cross-domain end-to-end path establishment through Ri interface and Rj interface
  • FIG. 4 is a schematic diagram of a cross-domain end-to-end path establishment method for the RACF structure shown in FIG. 1 according to an embodiment of the present invention
  • FIG. It is a flowchart of a cross-domain end-to-end path establishment method in the embodiment of the present invention.
  • a cross-domain end-to-end path establishment method is provided, which is a core technology for collecting network topology resources in a next generation network.
  • the method implements cross-domain communication between the transmission resource control function unit (TRC-FE) in the NGN network to implement the cross-domain end-to-end path establishment method related to the bearer network technology, and implements four methods related to the bearer network.
  • TRC-FE transmission resource control function unit
  • the establishment of the cross-domain end-to-end path solves the problem that the cross-domain end-to-end path establishment cannot be completed due to the need to use the information related to the bearer network technology in the related art. Embodiments of the present invention will be described in detail below. As shown in FIG.
  • an Rie interface ie, the first interface described above
  • an Rj interface ie, the second interface described above
  • the Ri interface and the Rj interface connect multiple networks of the "transport network" and the transit network to implement the connection between two user terminal devices (user terminal devices #1 and #2).
  • the Ri interface connects the local domain (DOMAIN A) policy decision function unit (PD-FE) to the peer domain (DOMAIN B) policy decision function unit, and the Rj interface
  • the local transmission resource control function unit is connected to the peer domain transmission resource control function unit, wherein the Ri interface transmits information related to the service; the Rj interface transmits information related to the transmission network.
  • the method may The method includes: Step S502: The local domain policy decision function unit sends a local path establishment request of a session to the local resource transmission control unit, and uses the Ri interface to determine the peer domain policy.
  • the policy function unit sends a session request, where the local domain transmission resource control function unit performs path calculation and resource allocation in the domain after receiving the path establishment request in the domain of the session;
  • Step S504 the peer end domain policy decision function unit receives the session request, and transmits the path establishment request in the peer end domain of the session to the peer domain transmission resource control function unit, and the peer domain transmission resource control function unit receives the path in the peer end domain of the session.
  • Step S506 the local domain resource control function unit and the peer domain resource control function unit notify the path establishment information in their respective domains through the Rj interface. Correlating information related to the path establishment information, and notifying the related information of the path establishment information and the path establishment information to the transmission resource execution function unit of the ingress node of the respective domain; and step S508, the transmission resource execution function unit of the domain and the peer domain
  • the transmission resource execution function unit respectively identifies and processes the path establishment information and the path establishment information related information of the respective domain, establishes a connection and allocates resources.
  • the local domain policy decision function unit sends a local-edge-to-edge path establishment request of the session to the local resource transmission control unit.
  • the peer end domain policy decision function unit sends the peer end domain inner boundary to the boundary path establishment request of the session to the peer end domain transmission resource control function unit.
  • the Ri interface transmits information related to the service
  • the Rj interface transmits information related to the transport network, thereby ensuring the correctness of the service data and ensuring the quality of the transmission.
  • the related information of the path establishment information includes: an egress node information, and a packet encapsulation information.
  • the present invention utilizes the existing Ri interface and the cross-domain communication interface (Rj interface) between the transmission resource control function units to directly transmit the information about the carrier network technology to perform the cross-domain end-to-end path of the bearer network.

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

Abstract

L'invention porte sur un procédé pour établir un trajet d'extrémité à extrémité inter-domaine. Dans ce procédé, une première interface est configurée entre une entité de fonction de décision de politique (PD-FE) du domaine local et une PD-FE du domaine opposé, et une seconde interface est configurée entre une entité de fonction de commande de ressource de transport (TRC-FE) du domaine local et une TRC-FE du domaine opposé. Les informations concernant le trafic sont passées par l'intermédiaire de la première interface et les informations concernant un réseau de transmission sont passées par l'intermédiaire de la seconde interface. Par ce procédé, le problème selon lequel une fonction de commande de trafic et une PD-FE ne peuvent pas achever indépendamment l'établissement du trajet d'extrémité à extrémité inter-domaine, qui est étroitement lié au réseau de support, peut être résolu.
PCT/CN2007/003673 2007-08-21 2007-12-19 Procédé pour établir un trajet d'extrémité à extrémité inter-domaine WO2009023999A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200710135790 CN101102254A (zh) 2007-08-21 2007-08-21 跨域端到端路径建立方法
CN200710135790.4 2007-08-21

Publications (1)

Publication Number Publication Date
WO2009023999A1 true WO2009023999A1 (fr) 2009-02-26

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WO (1) WO2009023999A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101106513B (zh) * 2007-08-23 2011-06-22 中兴通讯股份有限公司 跨域端到端路径建立方法
CN101309224B (zh) * 2008-06-30 2011-07-20 中兴通讯股份有限公司 一种多协议标签交换架构网络资源接纳控制系统及方法
CN108418753A (zh) * 2017-02-10 2018-08-17 中兴通讯股份有限公司 路径的建立方法及装置
CN112202526B (zh) * 2020-09-07 2023-03-24 中国联合网络通信集团有限公司 跨域波分复用系统的连通性确定方法和网元管理系统

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CN1756243A (zh) * 2004-09-29 2006-04-05 华为技术有限公司 一种保障端到端业务质量的方法
CN1783797A (zh) * 2004-12-02 2006-06-07 华为技术有限公司 一种对承载网资源进行分配的方法
WO2007006979A2 (fr) * 2005-07-13 2007-01-18 France Telecom Procede, systeme et programme d'ordinateur de determination des types d'accords d'interconnexion appliques aux liaisons interdomaines du reseau internet, utilisation dans un procede, systeme et programme d'ordinateur de configuration automatique d'un routeur

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