WO2009065360A1 - Procédé, système et équipement pour l'application qos de bout en bout - Google Patents

Procédé, système et équipement pour l'application qos de bout en bout Download PDF

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Publication number
WO2009065360A1
WO2009065360A1 PCT/CN2008/073110 CN2008073110W WO2009065360A1 WO 2009065360 A1 WO2009065360 A1 WO 2009065360A1 CN 2008073110 W CN2008073110 W CN 2008073110W WO 2009065360 A1 WO2009065360 A1 WO 2009065360A1
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WIPO (PCT)
Prior art keywords
qos
request
user
pcc
application
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PCT/CN2008/073110
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English (en)
Chinese (zh)
Inventor
Chenghui Peng
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Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009065360A1 publication Critical patent/WO2009065360A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements

Definitions

  • the PDF is a logical function module (when deployed, it can be deployed with the PCRF).
  • the PCC system of the network realizes interworking; PDF and PCRF are connected by Gx interface, and the function of PDF is to hide the distributed characteristics and mobile characteristics of the WiMAX network policy enforcement point (PCEF) from the PCRF.
  • the PCEF is divided into A-PCEF and C-PCEF according to the location of the network: A-PCEF is located in the access network to perform QoS and charging of the access network; C-PCEF is located in the core network, and the core network is executed. QoS and billing.
  • the WiMAX network lacks a secure QoS application interface and interface calling procedure suitable for opening to third-party applications, thereby opening up the QoS capability of the WiMAX network, resulting in QoS.
  • Information cannot be dynamically communicated and negotiated between upper-layer applications and WiMAX networks.
  • An embodiment of the present invention provides an end-to-end QoS application method, system, and device, which are used to implement an application server such as an ASP (Application Service Provider)/iASP (Internet ASP, Internet Application Service Provider).
  • ASP Application Service Provider
  • iASP Internet ASP, Internet Application Service Provider
  • the USI system applies to end-to-end QoS.
  • the universal open interface system receives the QoS request sent by the application server, and generates a QoS request sent to the policy and charging control system;
  • the universal open interface system sends the generated QoS request to the policy and charging control system, and receives the QoS allocation result sent by the policy and charging control system.
  • the policy and charging control system entity is configured to receive the QoS request sent by the universal open interface system entity and return a QoS allocation result.
  • a QoS request generating unit configured to generate a QoS request sent to the policy and charging control system entity according to the QoS request sent by the application server entity;
  • a request receiving unit configured to receive a user request
  • the address obtaining unit is configured to obtain an address of the universal open interface system entity, and send a QoS application to the acquired address according to the user request received by the request receiving unit.
  • the PCC system opens the dynamic QoS interface to the universal open interface USI system, and realizes the dynamic QoS capability of the WiMAX system to open the function to the third party through the USI interface.
  • the upper application entity provides the QoS information required by the service to the PCC system through the USI system, realizes the transmission and negotiation of the QoS information of the upper application entity and the PCC system, realizes the opening of the dynamic QoS capability of the access network, and the application and access from the upper layer. End-to-end QoS guarantee.
  • FIG. 1 is a flowchart of a method for applying end-to-end QoS in Embodiment 1 of the present invention
  • 2 is a schematic diagram of roaming of a USI system in Embodiment 1 of the present invention
  • FIG. 3 is another schematic diagram of the USI system roaming in the first embodiment of the present invention
  • FIG. 4 is a schematic diagram of the USI system roaming in the first embodiment of the present invention
  • FIG. 6 is a structural diagram of an end-to-end QoS application system in Embodiment 3 of the present invention. detailed description
  • an end-to-end QoS application method is provided, as shown in FIG. 1, including:
  • Step sl01 The user terminal accesses the WiMAX network, and the user terminal and the application server complete application layer interaction (such as registration and authentication of the user terminal in the application server), and trigger the QoS application on the application server.
  • application layer interaction such as registration and authentication of the user terminal in the application server
  • Step sl04 The PCC system performs QoS allocation according to the received QoS request, and returns the QoS allocation result to the USI system.
  • Step sl01 the user terminal accesses the WiMAX network, and triggers on the application server.
  • the step sioi further includes: (1) The user establishes a WiMAX IP-CAN (IP Connectivity Access Network IP) path.
  • the PCEF sends a request PCC Rules to the PCRF, where the request carries the IP-CAN type requested by the user.
  • the request carries the IP-CAN type requested by the user.
  • WiMAX IP Connectivity Access Network IP
  • the user identity may include a user NAI (Network Access Identifier) and/or an IP address.
  • the request is forwarded via PDF.
  • the PDF stores the information sent by the PCEF and forwards the request to the corresponding PCRF. This step is optional.
  • the PCRF obtains the QoS and PCC Rules of the user according to the IP-CAN type and the user identification information.
  • the PCRF performs user authentication and policy decision of IP-CAN. After passing, the PCC Rules matching the IP-CAN (with QoS information to be implemented) is returned to the PDF, and the PCRF stores the user and the corresponding PCC Rules information.
  • the PDF is stored after receiving the PCC Rules and will be forwarded to the PCEF.
  • the user terminal After the IP-CAN is established, the user terminal initiates a service request to the application server by interacting with the application server, for example, playing a video, triggering the QoS request logic of the application server.
  • QoSIdentifier String Type No Used to identify whether this QoS Request is the default QoS: 0, non-default QoS; 1 , Default QoS
  • DefaultQoS is 1 to identify the default QoS, it is used to identify whether to implement the default QoS to
  • Chaging-Identifier-Exch ange(l) Requires the network side to provide a charging identifier for association charging.
  • Recovery-Bearer-Notify (3) notify the application server when the bearer is restored
  • ServiceURN string type ⁇ is used to identify emergency calls
  • the content of UserlD is the user ID (such as the user access network identifier NAI) and/or the user's IP address (IPv4 or IPv6 address), and the user ID is composed of the username (username) and the domain name (realm).
  • the media type of the sub-component can be multiple. For details, refer to the definition of 3GPP Rx interface specification (29214). This parameter can describe one-way or two-way ip flow and describe the filter information and bandwidth information of the i stream. , specific reference table 5
  • the Media-Type ⁇ value is as follows:
  • Solution 2 When the application server sends a QoS request to the USI system of the home network of the user, the USI system of the home network sends a QoS request to the PCC system (H-PCC) of the home network, and the PCC system of the home network discovers that the user roams.
  • the QoS request is sent to the PCC system (V-PCC) of the user visited network (eg, the PCRF through the home network sends the request to the PCRF of the visited network).
  • V-PCC PCC system
  • the AA-Request message of the Rx (diameter protocol) interface is sent to the PCRF.
  • the USI implementation conversion is as shown in Table 6 below:
  • the USI system associates the application server with the USI charging identifier, and the access network charging identifier and the charging identifier of the USI system. Such association can be used for billing settlement of the USI system and the application server as needed, and the USI system and The billing and settlement of the access network; if the USI system is required, the access network may be associated with the charging identifier of the application server to complete the charging association and settlement between the access network and the application server.
  • the application server can also request the USI system to report the accounting identifier of the USI system for the application server to perform settlement between the USI system and the application server.
  • the purpose of introducing the USI charging identifier is to block the charging identifier of the access network from the application server, and the application server only needs to
  • the QoS allocation result may be sent to the application server by using an ACK message.
  • 2001 indicates that the request was successfully processed.
  • the application server initiates the termination of the QoS application.
  • the user terminal initiates the termination of the service request to the ASP/iASP application server, and the ASP/iASP application server can initiate the terminateQoS request to the USI system, and the USI system terminates the QoS application through the PCC system.
  • the terminateQoS request carries the QoSIdentifier parameter, and the value can be the same as that in the Apply QoS request.
  • the terminateQoS method is described in Table 17 below: Table 17: Description of the terminateQoS method
  • Origin-State-Id ⁇ Participates in the definition of RFC3588, and the value is consistent with the Re-Auth-Request message.
  • the Re-Auth-Request (RAR) message is sent.
  • the difference from the Re-Auth-Request that sends the QoS request is FLOW-STATUS. Is DISABLED ; if type is REMOVED, then FLOW-STATUS is configured as REMOVED, and after the PCC system returns to terminate successfully, the USI system returns a success message to the ASP/iASP application server, and then terminates the session with the ASP/iASP application server.
  • the PCC system After receiving the termination QoS request message, the PCC system uninstalls the PCC Rules of the configuration QoS of the session, and returns a termination success message to the USI system after the termination succeeds, carrying the return value and other information (such as error information and error message).
  • the host address, etc. is similar to the return message of the Apply QoS request. For details, refer to the Rx interface or the Gx interface specification defined by the 3GPP, and no detailed description will be given here.
  • the PCC system implements an end-to-end QoS solution:
  • the ASN GW is responsible for establishing a QoS guarantee channel with the HA through the RSVP protocol.
  • the PCRF of the WiMAX network has a signaling interface with the PCEF of the external network, and the PCRF sends a QoS policy to the PCEF, the external network.
  • PCEF implements policies to implement QoS;
  • HA C-PCEF acts as the border gateway of the network and is responsible for implementing the WiMAX network between the ASP/iASP application servers.
  • the optional parameter Chargingldentifier is used for the application server to notify the network side of the application's charging identifier.
  • the USI system receives the request and sends an AA-Request request to the PRCF module of the PCC system through the Rx interface by using the interface authentication of the application server, and each AVP (Attribute Value Pair) value (diameter protocol) As shown in Table 12 below:
  • Step s503 After the PCRF of the PCC system receives the AA-Request message, it finds the pair. After the QoS request is reviewed, the PCC Rules (the QoS information carrying the request) is sent and executed. After the successful execution result is received, the successful result information is returned to the USI system through the AA-Ask message.
  • the request for the apply QoS request described in XML is as follows.
  • the USI system converts to get the Media-Component-Description according to the received MediaFlowDescriptionlnSDPFormat parameter, as shown in Table 16.
  • the USI system sends the converted Media-Component-Description as a parameter of the AA-Request message to the PCRF.
  • the subsequent processing is consistent with the description in the second embodiment and will not be described in detail.
  • an application server is provided to register a default QoS parameter to
  • the applyQoS message is used to register the default QoS function as follows:
  • the USI system After receiving the information, the USI system knows that the request is to save the QoS default configuration parameters to the WiMAX network through the configuration of the DefaultQoS and ModifyExistingSession parameters.
  • the USI system is responsible for maintaining the relationship between the QoS default parameters and the QoS index. If the user information is carried in the request, the default QoS parameter belongs to the user. Otherwise, the default parameter can be used by all users.
  • the USI system returns to the application server after it has succeeded. If ModifyExistingSession is configured to 1 (need to carry the UserlD parameter), then the USI system is required to send the request to the PCC system to modify the QoS of the session the user is making.
  • the dynamic QoS interface is opened by the PCC system to the USI system
  • the dynamic QoS capability of the WiMAX system is opened to the third-party application through the USI interface.
  • the upper application entity provides the QoS information required by the service to the PCC system through the USI system, realizes the transmission and negotiation of the QoS information of the upper application entity and the PCC system, realizes the opening of the dynamic QoS capability of the access network, and the application and access from the upper layer.
  • End-to-end QoS guarantee An embodiment of the present invention further provides an end-to-end QoS application system, as shown in FIG. 6, including:
  • the application server entity 10 is configured to receive a user request and send a QoS request to the universal open interface system entity.
  • the universal open interface system entity 20 is configured to generate a QoS request according to the received QoS request sent by the application server entity 10, and send the QoS request to the PCC system entity 30; and receive the QoS allocation result sent by the PCC system entity 30.
  • the PCC system entity 30 is configured to receive the QoS request sent by the universal open interface system entity 20 and return a QoS allocation result.
  • the application server entity 10 further includes:
  • a request receiving unit 11 configured to receive a user request
  • the universal open interface system entity 20 further includes:
  • the QoS request generating unit 21 is configured to generate a QoS request sent to the PCC system entity 30 according to the QoS application sent by the application server entity 10;
  • the converting unit 22 is configured to convert the QoS request generated by the QoS request generating unit 21 and send the QoS request to the PCC system entity 30.
  • the receiving unit 23 is configured to receive a QoS allocation result sent by the PCC system entity 30.
  • the dynamic QoS interface is opened by the PCC system to the USI system
  • the dynamic QoS capability of the WiMAX system is opened to the third-party application through the USI interface.
  • the upper application entity provides the QoS information required by the service to the PCC system through the USI system, realizes the transmission and negotiation of the QoS information of the upper application entity and the PCC system, realizes the opening of the dynamic QoS capability of the access network, and the application and access from the upper layer. End-to-end QoS guarantee.
  • the present invention can be implemented by hardware, or by software plus necessary general hardware platform.
  • the technical solution of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several The instructions are for causing 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.
  • a computer device which may be a personal computer, server, or network device, etc.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé pour l'application de qualité de service (QoS) de bout en bout, qui comprend les opérations suivantes : le système d'interface d'ouverture universel reçoit l'application QoS envoyée par le serveur d'application, et génère une requête QoS qui l'envoie au système de commande de politique et de facturation (PCC) ; le système d'interface d'ouverture universel envoie la requête QoS générée au système PCC, et reçoit un résultat de distribution QoS envoyé par le système PCC. L'invention porte également sur un système pour l'application de qualité de service (QoS) de bout en bout. Selon l'utilisation des modes de réalisation de l'invention, le système PCC ouvre une interface QoS dynamique pour le système d'interface d'ouverture universel, et réalise le fait que les possibilités QoS dynamiques du système WiMAX ouvrent des fonctions pour l'application de tiers par l'intermédiaire de l'interface USI. L'entité d'application de couche supérieure fournit les informations QoS dont a besoin le service au système PCC par l'intermédiaire du système USI, réalise le transfert et la négociation des informations QoS de l'entité de couche supérieure et du système PCC, réalise l'ouverture des possibilités QoS du réseau d'accès, et la garantie QoS de bout en bout de la couche supérieure au réseau d'accès.
PCT/CN2008/073110 2007-11-19 2008-11-19 Procédé, système et équipement pour l'application qos de bout en bout WO2009065360A1 (fr)

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