WO2007124633A1 - Procédé de fourniture d'un service multidestination par le côté réseau dans un système de communication mobile wimax - Google Patents

Procédé de fourniture d'un service multidestination par le côté réseau dans un système de communication mobile wimax Download PDF

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Publication number
WO2007124633A1
WO2007124633A1 PCT/CN2006/003738 CN2006003738W WO2007124633A1 WO 2007124633 A1 WO2007124633 A1 WO 2007124633A1 CN 2006003738 W CN2006003738 W CN 2006003738W WO 2007124633 A1 WO2007124633 A1 WO 2007124633A1
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WO
WIPO (PCT)
Prior art keywords
multicast
pcf
bsc
server
service
Prior art date
Application number
PCT/CN2006/003738
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English (en)
Chinese (zh)
Inventor
Daohong Li
Feng Kou
Yunfei Ma
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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 WO2007124633A1 publication Critical patent/WO2007124633A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a method for initiating establishment and release of a multicast service connection on a network side in a WiMAX mobile communication system. Background technique
  • WiMAX Worldwide Interoperability for Microware Access Forum
  • BWA Broadband Wireless Access
  • ASN Access Service Network; access service network;
  • CSN Connectioned Service Network, connected to the monthly service network
  • ASN is a series of network function entities that provide users with wireless access, including BS (Base Station, Base) and ASN-GW (Access Service Network Gateway).
  • the functions of the ASN include: providing a layer 2 connection between the MSS (Mobile Subscriber Station) and the BS; the proxy forwards the AAA (Authentication, Authorization, and Accounting, Authentication, Authorization, and Accounting Server) message to the user's home network. For authentication, authorization, and accounting; discovering and selecting the appropriate NSP (Network Service Provider) to access the WiMAX service provision system; providing relay functions for the user's Layer 3 connection establishment (eg , IP address allocation :); Management of wireless resources, etc.
  • AAA Authentication, Authorization, and Accounting, Authentication, Authorization, and Accounting Server
  • CSN is a series of network functional entities that provide users with IP connections.
  • the features of CSN include:
  • MSS IP address allocation Internet access; proxy AAA ( ) and home AAA (Home AAA ) functions; user profile based policy and control; support ASN-CSN tunnel; user billing and operator billing; Inter-CSN tunnel for roaming function; supports Inter-ASN mobility, etc.
  • the third-party provider of the user service or application is called the application service provider ASP; the network formed by the application service provider is called the ASP network; the Internet, that is, the Internet.
  • Multicast streams can be broadcast in a multicast area (called MBS Zone). Users in the MBS Zone can receive multicast services in the MBS Zone after registration (Multicast Broadcast Service, Multicast Broadcasting Service) Affairs).
  • the MSS moves from one BS to another within one MBS Zone, the MSS does not need to re-establish connection control multicast traffic.
  • it is necessary to support a macro diversity function to ensure that multicast service transmissions within a group of BSs are synchronized.
  • WiMA's current network architecture can only provide unicast services to MSS, and the existing technologies in the packet domain cannot provide multicast data services.
  • WiMAX's air interface specification only mentions the concept of MBS services and macro diversity, and does not define the implementation of MBS services and macro diversity.
  • the applicant has proposed a system for implementing a multicast service in a WiMAX system, but there is currently no method for the network side to initiate a multicast service.
  • SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a method for providing multicast monthly services in a WiMAX mobile communication system, and specifically to provide a solution for a network side to initiate establishment and release of a multicast service connection. .
  • the invention provides a method for a network side to initiate a multicast service connection in a WiMAX mobile communication system, comprising the following steps: (1) A mobile subscriber station acquires an IP address of a multicast controller, and obtains a multicast session from a multicast controller. Information
  • the multicast controller sends the multicast session information to the multicast server; (3) establishing a multicast stream channel between the multicast server and the multicast content server; (4) the multicast server will multicast ⁇
  • the tongue information is sent to the primary BSC/PCF in the multicast service area; (5) the radio resource is allocated to the mobile subscriber station under the primary BSC/PCF;
  • the master BSC/PCF initiates a multicast registration request to the multicast server, requesting to establish an R6 tunnel as a bearer channel of the multicast stream; (10) the multicast server returns a multicast registration response, and establishes a bearer channel R6 of the multicast stream. ;
  • the media is streamed through the multicast content server, the multicast server, the primary BSC/PCF, and/or from the BSC/PCF to the mobile subscriber station.
  • the above method further includes the step of the network side initiating the release of the multicast service connection:
  • the multicast server sends an R6 multicast registration update message to the primary BSC/PCF to request the release of the multicast connection;
  • the primary BSC/PCF receives the release request and returns an R6 multicast registration response to the multicast server;
  • the main BSC/PCF releases the radio resources between the mobile subscriber stations
  • FIG. 1 is a schematic diagram of a network structure of a WiMAX system
  • FIG. 2 is a schematic diagram of a network structure of a system according to the present invention
  • FIG. 3 is a schematic diagram of a multicast area MBS Zone in the system according to the present invention.
  • the network side initiates a process of establishing a multicast service connection
  • FIG. 5 is a flow of the network side initiated to release the multicast service connection established in FIG. 4 in the method of the present invention
  • DETAILED DESCRIPTION OF THE INVENTION The present invention provides a multicast/broadcast
  • the service method is applied to the WiMAX system and describes the scenarios and processes in which the user accesses the multicast service, transmits the multicast stream, and releases the multicast connection.
  • the network reference model of the WiMAX system multicast service proposed by the applicant is shown in Figure 2.
  • the model has the following main features:
  • MBS connection ID MBS Connection IDentifier
  • the MBS server manages the BSC/PCF (Base Station Controller/Packet Control Function), manages the MBS Zone, does not distinguish users, only records BS information, and BS maintains MSS information.
  • BSC/PCF Base Station Controller/Packet Control Function
  • the corresponding BSC/PCF is called master BSC/PCF (Master BSC/PCF)
  • the other BSs are slave BSs
  • the corresponding BSC PCFs are called slaves.
  • BSC PCF Save BSC/PCF
  • the primary BSC/PCF in the MBS Zone can be fixed or flexible depending on the specific implementation strategy.
  • the MBS Scheduler entity is added to perform multicast scheduling and framing functions under macro diversity.
  • the multicast service data in the MBS Zone is centrally scheduled by the multicast service scheduler to ensure the synchronization of the multicast data transmission under each BS in the MBS Zone, that is, the specific multicast stream data ASN-GW is only sent to the main The BSC/PCF, the ASN-GW only establishes an R6 tunnel with the primary BSC/PCF.
  • the secondary BSC/PCF only needs to perform R6 signaling interaction with the ASN-GW, and does not need to establish an R6 tunnel.
  • the primary BSC/PCF passes through the R8 tunnel to the secondary BSC.
  • /PCF provides a multicast stream to ensure that the MBS program is not interrupted when the MSS moves under an MBS Zone. 3. Add the MBS Content Provider, the provider or source of the MBS content, which can be provided by the operator.
  • the MBS Content Server provides multicast content services for access users of WiMAX systems.
  • the MBS content server can receive multicast content provided by different MBS content providers, combine them and process them, and then forward them to the main BSC/PCF through the ASN-GW.
  • Power-up p MBS Controller functional entity, assists the MSS to obtain the content that can be subscribed, and manages the content transfer from the MBS content provider to the MBS content server; and starts and stops the content transmission of the MBS content server.
  • Multicast Router optional. If tunneling between the MBS content server and the ASN-GW is used, the MR can be omitted.
  • the MBS service process includes the following basic steps: Step 1. MSS access to the WiMAX network is successful; Step 2. MSS obtains the IP address of the MBS controller; Step 3. MSS accesses the MBS controller, requests the content information of the multicast service Step 4. Establish the multicast bearer path; Step 5. Transfer the multicast media stream; Step 6. Add the other MSS to the built multicast service; Step 7. Release the multicast bearer path.
  • Step 1. MSS access to the WiMAX network is successful;
  • Step 2. obtains the IP address of the MBS controller;
  • Step 4. Establish the multicast bearer path; Step 5. Transfer the multicast media stream; Step 6. Add the other MSS to the built multicast service; Step 7. Release the multicast bearer path.
  • the process of establishing and releasing the multicast path is different, and the present invention will describe the establishment and release of the network side in detail.
  • the multicast service flow of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, including a process of establishing a multicast service connection, a process of joining a multicast group, and a process of releasing a multicast service connection.
  • FIG. 4 the process of initiating the establishment of an MBS connection by the network side is described.
  • the MBS service provider issues a notification or advertisement
  • the network side needs to initiate the MBS service process.
  • the MBS server initiates the establishment of the MBS connection.
  • an MBS service connection is established in all cells in the MBS Zone coverage area corresponding to the MBS service.
  • the BS can broadcast media streams within the MBS Zone. Users do not need to actively perform MBS registration, they can watch the program content.
  • the specific process is as follows:
  • the MSS obtains the IP address of the MBS controller, which can be obtained by using a pre-configuration, a short message delivery, or a DHCP (Dynamic Host Configuration Protocol) process.
  • a DHCP Dynamic Host Configuration Protocol
  • the MSS obtains the MBS session information from the MBS controller, and may adopt an HTTP method or the like;
  • the MBS controller sends the monthly AAA ⁇ fc MBS session information to the MBS server;
  • a multicast stream channel is established between the MBS server and the MBS content server.
  • the MBS server can directly establish a bearer channel with the MBS content server in a tunnel manner, or join the MR-maintained multicast group related to the MBS session by using the IGMP protocol.
  • MBS session information is sent to the main BSC/PCF in the MBS Zone;
  • the primary BSC/PCF answers the MBS Server
  • the primary BSC/PCF initiates a registration request for establishing a bearer channel of the multicast stream, and starts to establish an R6 tunnel;
  • the bearer channel of the multicast stream is established.
  • the media stream passes the MBS content service.
  • MBS server MBS server
  • master BSC/PCF master BSC/PCF to slave BSC/PCF
  • MSS MSS
  • FIG. 5 the process of initiating release of the MBS connection established in FIG. 4 by the network side is described.
  • the network side initiates the release of the bearer channel.
  • the MBS server initiates the release of the R6 multicast tunnel.
  • the specific release process is as follows:
  • the MBS server sends an R6 BC Registration Update message to the primary BSC/PCF, and initiates release of all A10 connections corresponding to the MBS session;
  • the primary BSC/PCF returns an R6 BC Registration Acknowledge, telling the MBS server to accept the release it initiated;
  • the main BSC/PCF releases the radio resources between the MSS and the MSS;
  • the MBS server releases the information corresponding to the MBS connection, and then returns an R6 BC Registration Reply to release the R6 tunnel.

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

Abstract

La présente invention concerne un procédé de création et de lancement d'un service multidiffusion par le côté réseau dans un système de communication mobile WiMAX. Le procédé de création comprend les étapes suivantes: la station mobile acquiert l'adresse IP du contrôleur de multidiffusion et acquiert les informations de conversation multidiffusion par le contrôleur de multidiffusion; le contrôleur de multidiffusion transmet les informations de conversation multidiffusion au serveur multidiffusion; le serveur de multidiffusion transmet les informations de conversation multidiffusion au BSC/PCF principal dans la zone de service de multidiffusion; puis affecte la ressource sans fil pour la station mobile du BSC/PCF principal et du BSC/PCF esclave; transmet le flux média à la station mobile par l'intermédiaire du serveur de contexte de multidiffusion, du serveur de multidiffusion, du BSC/PCF principal et du BSC/PCF esclave lorsqu'il fournit le service de multidiffusion. Cette invention pourrait assurer l'acquisition par MMS du service de multidiffusion pour le service multidiffusion de WiMAX et supporter une application en macrodiversité par la division en une BS principale et une BS esclave dans une zone MBS. Cette invention permettrait de mieux partager la voie du côté radio et du côté réseau et d'économiser la ressource.
PCT/CN2006/003738 2006-04-29 2006-12-30 Procédé de fourniture d'un service multidestination par le côté réseau dans un système de communication mobile wimax WO2007124633A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2006100605940A CN101064925B (zh) 2006-04-29 2006-04-29 WiMAX移动通信系统中网络侧发起多播业务的方法
CN200610060594.0 2006-04-29

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WO2007124633A1 true WO2007124633A1 (fr) 2007-11-08

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CN101888594B (zh) * 2009-05-15 2014-03-12 中兴通讯股份有限公司 一种多播广播数据通道的释放方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002089501A1 (fr) * 2001-04-30 2002-11-07 Winphoria Networks, Inc. Systeme et procede permettant d'appeler un groupe dans des communications mobiles
CN1437367A (zh) * 2002-02-09 2003-08-20 华为技术有限公司 移动网络中实现多播业务的方法
CN1438807A (zh) * 2002-02-10 2003-08-27 华为技术有限公司 多播业务中选择无线信道配置的方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100589634C (zh) * 2006-04-29 2010-02-10 中兴通讯股份有限公司 WiMAX移动通信系统中移动用户台发起多播业务的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002089501A1 (fr) * 2001-04-30 2002-11-07 Winphoria Networks, Inc. Systeme et procede permettant d'appeler un groupe dans des communications mobiles
CN1437367A (zh) * 2002-02-09 2003-08-20 华为技术有限公司 移动网络中实现多播业务的方法
CN1438807A (zh) * 2002-02-10 2003-08-27 华为技术有限公司 多播业务中选择无线信道配置的方法

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CN101064925A (zh) 2007-10-31

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