WO2011035666A1 - Procédé et système de réalisation de rapport de statut de ressources dans un système de gestion de ressources - Google Patents

Procédé et système de réalisation de rapport de statut de ressources dans un système de gestion de ressources Download PDF

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Publication number
WO2011035666A1
WO2011035666A1 PCT/CN2010/076176 CN2010076176W WO2011035666A1 WO 2011035666 A1 WO2011035666 A1 WO 2011035666A1 CN 2010076176 W CN2010076176 W CN 2010076176W WO 2011035666 A1 WO2011035666 A1 WO 2011035666A1
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WIPO (PCT)
Prior art keywords
resource
control function
function entity
transmission control
multicast
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PCT/CN2010/076176
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English (en)
Chinese (zh)
Inventor
成超文
宋军
孙默
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中兴通讯股份有限公司
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Publication of WO2011035666A1 publication Critical patent/WO2011035666A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning

Definitions

  • the invention relates to a multicast admission control technology based on resource status, which is implemented by a resource connection initiation protocol (RCIP) and an access network control protocol (ANCP) in a broadband network, in particular A method and system for realizing resource status reporting in a resource management system.
  • RCIP resource connection initiation protocol
  • ANCP access network control protocol
  • Resource admission control is a new concept introduced in Next Generation Networks (NGN) with a functional layer between the service control layer and the bearer transport layer.
  • NTN Next Generation Networks
  • the specific details of the transport network are shielded from the service layer, the service control and the transport function are separated, the resource usage of the transport network is perceived downward, and the admission control and resource control are adopted to ensure the correct and reasonable use of the transport.
  • Network resources thus ensuring the quality of service of the service, and preventing the phenomenon of bandwidth and business theft.
  • the ITU defines the Resource Admission Control Function (RACF) for research on resource admission control.
  • RAF Resource Admission Control Function
  • Figure 1 is a schematic diagram of the existing network architecture for implementing resource admission control.
  • Figure 1 is a schematic diagram of the existing network architecture for implementing resource admission control.
  • the RACF consists of a Policy Decision Function Entity (PD-FE) and a Transmission Control Function Entity (TRC-FE).
  • the PD-FE is based on the network policy rule, the service information provided by the service control layer, the transport layer subscription information provided by the network attach function, and the resource admission decision result provided by the transmission control function, and then makes the final decision of the network resource admission control.
  • TRC-FE is not related to the business, but is related to the transmission technology.
  • TRC-FE is used to collect and maintain topology and resource status information of the transport network, based on topology, connectivity, availability of network and node resources, and control resource usage based on transport layer subscription information in the access network.
  • the network implements admission control.
  • the PE-FE is a packet-to-packet gateway, and may be located between the user terminal device and the access network, or between the access network and the core network, or between different carrier networks, and the PE-FE supports dynamic service quality ( QoS) Control, key node for port address translation control.
  • QoS dynamic service quality
  • the TRE-FE is used to perform a transmission resource policy rule indicated by the TRC-FE.
  • FIG 1 also includes the Customer Premises Network (CPN); Service Control Functions such as Multimedia System (IMS); and Network Attachment Control Functions (NACF), which provide information such as user subscription data.
  • CPN Customer Premises Network
  • IMS Multimedia System
  • NACF Network Attachment Control Functions
  • the access control function of the access node and the transport entity is combined with the upper layer TRC through the Rp interface.
  • FE interaction to implement admission control of multicast services which can push the multicast replication function to the access node, saving a lot of network resources (such as aggregate network bandwidth).
  • the ITU defines the RCIP protocol, which is implemented by initiating the protocol between two TRC-FEs.
  • the access node multicast resource is completely assigned by the upper layer TRC-FE; and the access node resource is completely shared between the unicast and multicast services.
  • FIG. 2 is a flowchart of the multicast resource admission control of the existing access node multicast unicast resource sharing, as shown in FIG. 2, including the following Steps:
  • Step 200 The user premises equipment (CPE) requests the access node (Access node) for the multicast service by using a multicast join request message, such as an Internet Group Management Protocol (IGMP) join request.
  • CPE user premises equipment
  • IGMP Internet Group Management Protocol
  • Step 201 A multicast transmission control function (MTCF) located at an access node processes a multicast request message. If the user requests that the channel is not available at the access node, the MTCF provides a coordinated transmission control function entity located at the access node ( TRC-FE) sends an admission control request to request a channel Admission control.
  • TRC-FE coordinated transmission control function entity located at the access node
  • Step 202 The TRC-FE that is connected to the access node performs access network multicast resource admission control, and allocates the required multicast resources for the multicast service.
  • Step 203 The TRC-FE of the access node is returned to the MTCF to return an admission control response in response to the MTCF admission control request.
  • Step 204 The TRC-FE of the access node is configured to report the access line resource status to the top-tier TRC-FE.
  • An access line is one of a specific network segment.
  • Step 205 The MTCF returns a multicast join response message to the CPE in response to the current user multicast service request.
  • the control of the access node is generally implemented by the access network control protocol (ANCP), that is, the IP edge point (BNG/BRAS) connects/controls each access through the ANCP protocol. node.
  • ANCP access network control protocol
  • BNG/BRAS IP edge point
  • the ITU proposes a new deployment mode.
  • Figure 3 shows the access node that is jointly deployed by the existing ANCP and RCIP, which is responsible for multicast resource admission control, as shown in Figure 3.
  • the upper layer transmission control function entity (Top-tier TRC-FE) connects the interaction function (IWK) in the IP edge node through the Rp interface, and the RCIP protocol is used between the upper layer transmission control function entity and the IWK; the IWK is connected to the access node through the ANCP protocol. TRC-FE.
  • the current description of the bandwidth usage of the access node by the ANCP protocol includes a bandwidth transfer message and a delegated bandwidth response message.
  • the Bandwidth transfer message is a response to a valid bandwidth allocation request, and is used to transmit the current bandwidth description information of the specified access node to the requester.
  • Preferred bandwidth value is used to describe the preferred bandwidth value of the request (Preferred amount)
  • the delegated bandwidth response message is used to respond to an assigned bandwidth query request. Its related parameters are related to the Bandwidth transfer message, including the message type indication (TLV Type) of the bandwidth status (Band-Status), the request bandwidth value (Required amount) for describing the required bandwidth value of the request, and A preferred preferred value describing the preferred bandwidth value of the request.
  • TLV Type message type indication
  • Band-Status bandwidth status
  • Request bandwidth value Required amount
  • these messages can only support the access node reported by the access node as shown in Figure 2, and cannot support the active reporting function triggered by the access node in real time.
  • the current transmission control function of the access node and the transport entity is not defined by the interaction of the Rp interface with the upper TRC-FE.
  • the access node that is jointly deployed by the ANCP and the RCIP is responsible for the multicast admission control scenario, which causes the upper layer transmission control function entity to be unable to sense the access node resource usage status in real time, and thus the admission control cannot be implemented well.
  • the main purpose of the present invention is to provide a method for implementing resource status reporting in a resource management system, which can support an active reporting function triggered by an access node in real time, and implement admission control well.
  • Another object of the present invention is to provide a system for implementing resource status reporting in a resource management system, which can support an active reporting function triggered by an access node in real time, and implement admission control well.
  • a method for implementing resource status reporting in a resource management system includes:
  • the collocated transmission control function entity in the access node actively reports the resource status of the specific network segment to the top-level transmission control function entity, and the resource management system performs resource management according to the resource status.
  • the method further includes: the access node performing access network multicast resource admission control to assign a required multicast resource to the multicast service.
  • the reconciliation transmission control function entity in the access node actively reports the resource status of the specific network segment to the top layer transmission control function entity, which specifically includes:
  • the closed transmission control function entity in the access node according to the access network control protocol
  • the ANCP reports the activated multicast resources to the IP edge node.
  • the IP edge node reports the resource status of the specific network segment to the top-level transmission control function entity according to the resource connection initial protocol RCIP.
  • the acknowledgment transmission control function entity in the access node reports the activated multicast resource to the IP edge node according to the ANCP: the detached transmission control function entity in the access node reports the message through the ANCP resource status to the IP The edge node reports the activated multicast resource;
  • the ANCP resource status report message carries a message type indication and bandwidth description information of the currently activated multicast resource.
  • the IP edge node reports the resource status of the specific network segment to the top-level transmission control function entity according to the RCIP: the IP edge node reports the activated multicast resource to the top-level transmission control function entity by using the RCIP bandwidth sink message;
  • the RCIP bandwidth report message carries a message type indication and a currently activated multicast resource bandwidth value.
  • the specific network segment is an access line.
  • a system for implementing resource status reporting in a resource management system includes at least a detached transmission control function entity and a top layer transmission control function entity in an access node, where
  • a closed transmission control function entity in the access node configured to actively transmit control to the top layer
  • the functional entity reports the resource status of a specific network segment
  • the top-level transmission control function entity is configured to receive a resource status of a specific network segment that is actively reported by the closed transmission control function entity, so that the resource management system performs resource management according to the resource status.
  • the access node is further configured to perform access network multicast resource admission control to assign a required multicast resource to the multicast service.
  • the system also includes an IP edge node
  • the splicing transmission control function entity in the access node is specifically configured to report the activated multicast resource to the IP edge node according to the access network control protocol ANCP, and the IP edge node transmits the control function to the top layer according to the resource connection initial protocol RCIP.
  • the entity reports the resource status of a particular network segment.
  • the splicing transmission control function entity in the access node actively reports the resource status of the specific network segment to the top-level transmission control function entity, and the resource management system performs resource management according to the resource status.
  • the admission control supports the function of the active reporting resource status triggered by the access node in real time. It ensures that the upper layer transmission control function entity perceives the access node resource usage status in real time, so that the admission control is well realized.
  • FIG. 1 is a schematic diagram of a network architecture for implementing a resource admission control function
  • FIG. 2 is a flow chart of multicast resource admission control for existing access node multicast unicast resource sharing
  • FIG. 3 is a schematic diagram of an access node jointly deployed by an existing ANCP and RCIP for receiving multicast resource admission control
  • FIG. 4 is a flowchart of a method for implementing resource status reporting in a resource management system according to the present invention
  • FIG. 5 is a flowchart of an embodiment of implementing shared multicast unicast resource admission control according to the present invention. detailed description
  • FIG. 4 is a flowchart of a method for implementing resource status reporting in a resource management system according to the present invention. As shown in FIG. 4, for a scenario in which an access node jointly deployed by ANCP and RCIP is responsible for multicast admission control, the method of the present invention includes the following steps:
  • Step 400 The access node performs access network multicast resource admission control to allocate the required multicast resources for the multicast service.
  • the TRC-FE that is set by the access node also returns an admission control response to the MTCF to respond to the admission control request of the MTCF. It should be noted that there is no sequence between the execution of the return admission control response and the step 401.
  • Step 401 The access node reports the activated multicast resource to the IP edge node according to the ANCP, and the IP edge node reports the resource status of the specific network segment to the top layer transmission control function entity according to the RCIP.
  • the access node reports the activated multicast resources to the IP edge node through the ANCP resource status report message shown in Table 2.
  • the ANCP bandwidth report message is mainly used for the TRC-FE located at the access node after the multicast resource admission control of the user requests the multicast service (ie, step 400).
  • the IP edge node reports the resource status of a specific network segment.
  • the resource management system performs resource management based on the resource status.
  • the ANCP resource status report message carries a bandwidth report message, and the parameter mainly includes a message type indication (TLV Type), which is a bandwidth report (Band-report), and is used to indicate that it is a bandwidth report message;
  • TLV Type message type indication
  • Band-report bandwidth report
  • the bandwidth description information (Committed amount) applied to the multicast service that is currently activated by the access node is used to describe the bandwidth value applied to the multicast service that the access node has activated.
  • TLV Type Band-report is used to indicate that this is a bandwidth sink message Committed amount (kbits/s) is used to describe the application that the access point has been activated.
  • the bandwidth of the multicast service is the bandwidth of the multicast service.
  • the IP edge node uses the RCIP message to transfer the resource status of the specific network segment to the top-level transport control function entity.
  • the RCIP message is an RCIP bandwidth sink message carrying a message type indication (indicating that the message type is a bandwidth report message) and a currently activated multicast bandwidth value (ie, a currently activated multicast resource) of a specific network segment.
  • the function of actively reporting the resource status triggered by the access node in real time is supported by the method of the present invention. It ensures that the upper layer transmission control function entity perceives the access node resource usage status in real time, so that the admission control is well realized.
  • FIG. 5 is a flowchart of an embodiment of implementing a shared multicast unicast resource admission control according to the present invention.
  • a specific network segment is used as an access line as an example for description. As shown in Figure 5, the following steps are included:
  • Step 500 The CPE requests a multicast service from an access node by using a multicast join request message, such as an IGMP join request.
  • a multicast join request message such as an IGMP join request.
  • Step 501 The MTCF located at the access node processes the multicast request message. If the user requests that the channel is not available at the access node, the MTCF sends an admission control request to the associated TRC-FE located at the access node to request the channel. Admission control.
  • Step 502 The TRC-FE that is connected to the access node performs access network multicast resource admission control, and allocates the required multicast resources for the multicast service.
  • Step 503 The TRC-FE of the access node is returned to the MTCF to return an admission control response in response to the MTCF admission control request.
  • Step 504 The MTCF returns a multicast join response message to the CPE in response to the current user multicast service request.
  • Step 505 The TRC-FE triggered by the access node triggers the description of the activated multicast resource.
  • the ANCP multicast resource report message carries a bandwidth report message, which contains the bandwidth description information of the multicast resource that is activated by the current access point.
  • Step 506 The edge node terminates the ANCP message, and sends an RCIP access line resource status report message to the top layer transmission control function entity.
  • the edge node reports the access line resource status to the top-level transport control function entity according to the RCIP.
  • the RCIP message is an RCIP bandwidth report message, which includes a message type indication (used to indicate that the message type is a bandwidth report message) and a multicast bandwidth value currently activated by the access line.
  • steps 503 and 504 are not in sequence with the execution of step 505 and step 506.

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

Abstract

La présente invention concerne un procédé de réalisation de rapport de statut de ressources dans un système de gestion de ressources. Une entité combinée de fonction de contrôle de transport dans un nœud d'accès rapporte un statut de ressource d'un segment de réseau spécifique à une entité de fonction de contrôle de transport de couche supérieure vers l'avant. Le système de gestion de ressources réalise une gestion de ressources conformément au statut de ressource. La présente invention concerne également un système de réalisation de rapport de statut de ressources dans le système de gestion de ressources. La solution technique peut réaliser un rapport du statut de ressource vers l'avant déclenché par le temps réel de nœud d'accès, et garantir qu'une entité de fonction de contrôle de transport de couche supérieure perçoit le statut d'utilisation de ressources du temps réel de nœud d'accès.
PCT/CN2010/076176 2009-09-25 2010-08-20 Procédé et système de réalisation de rapport de statut de ressources dans un système de gestion de ressources WO2011035666A1 (fr)

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WO2011144100A2 (fr) * 2011-05-27 2011-11-24 华为技术有限公司 Procédé et appareil de planification de service sous de multiples passerelles de réseau à large bande

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CN1874257A (zh) * 2005-07-11 2006-12-06 华为技术有限公司 用户上下线的处理方法
WO2008002092A2 (fr) * 2006-06-29 2008-01-03 Electronics And Telecommunications Research Institute Procédé de transfert dans un système de communication sans fil
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CN100401683C (zh) * 2005-07-11 2008-07-09 华为技术有限公司 网络中对等资源接纳控制子系统实体之间的上报方法
CN101166194B (zh) * 2006-10-19 2011-03-30 华为技术有限公司 一种实现分布式接纳控制的系统和方法
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CN1874257A (zh) * 2005-07-11 2006-12-06 华为技术有限公司 用户上下线的处理方法
WO2008002092A2 (fr) * 2006-06-29 2008-01-03 Electronics And Telecommunications Research Institute Procédé de transfert dans un système de communication sans fil
CN101150789A (zh) * 2006-09-21 2008-03-26 中兴通讯股份有限公司 一种基站资源管理的方法

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