WO2008040244A1 - Système de multidiffusion/diffusion et procédé pour le transfert d'un service de multidiffusion/diffusion - Google Patents

Système de multidiffusion/diffusion et procédé pour le transfert d'un service de multidiffusion/diffusion Download PDF

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Publication number
WO2008040244A1
WO2008040244A1 PCT/CN2007/070741 CN2007070741W WO2008040244A1 WO 2008040244 A1 WO2008040244 A1 WO 2008040244A1 CN 2007070741 W CN2007070741 W CN 2007070741W WO 2008040244 A1 WO2008040244 A1 WO 2008040244A1
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WO
WIPO (PCT)
Prior art keywords
mbs
multicast
mbsc
broadcast
service
Prior art date
Application number
PCT/CN2007/070741
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English (en)
Chinese (zh)
Inventor
Ruobin Zheng
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008040244A1 publication Critical patent/WO2008040244A1/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
    • 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
    • H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership

Definitions

  • the present invention relates to the field of network communications, and in particular, to a multicast broadcast system and a method for transmitting a multicast broadcast service.
  • WiMAX World Interoperability for MS
  • the network architecture is shown in Figure 1.
  • the MS passes the R1 reference point and the BS (Base in the ASN (A Ccess Service Network)).
  • ASN Base station (not shown in Figure 1) is connected to connect to the ASN, and R1 uses 802.16e wireless transmission technology.
  • ASN passes R3 reference point and V-NSP (Visited-Network Service
  • CSN Connectivity Service
  • the VSN of the V-NSP is connected to the CSN of the H-NSP (Home-N etwork Service Provider) through the R5 reference point.
  • IP multicast technology is valuable because IP multicast as an extension to traditional IP provides one-to-many, many-to-many, and many-to- on a LAN or WAN.
  • IP transmission mode and a solution for the corresponding business.
  • broadcast mode although a hardware broadcast can be used to send an IP packet to all devices on the subnet without copying the IP packet, the broadcast mode can only be limited to the sender. It can be valid in the subnet. Once the receiver and the sender do not belong to the same subnet, if the router also uses the broadcast mode to forward IP packets, it will be forced to copy the message on all interfaces and send it. From this point of view, while using the broadcast mode can save the sender's resources, it also causes a lot of waste of network resources, and will greatly increase the possibility of message loopback. Therefore, in general, broadcast mode can only be restricted to subnet applications.
  • BWA Broadband Wireless Access
  • WiMAX wireless local area network
  • DSL digital subscriber line
  • An object of the present invention is to provide a multicast broadcast system and a multicast broadcast service transmission method, thereby enabling a multicast broadcast service to be extended through a BWA network such as WiMAX or DSL.
  • a multicast broadcast system comprising: a multicast broadcast controller MBSC, a multicast broadcast content server MBS CS, and an access network edge node AE, wherein [16] MBSC, used to connect with MBS CS through the first interface to provide IP multicast address management;
  • the CS is configured to connect to the AE through the fourth interface, convert the received MBS service content into a multicast/broadcast IP stream under the control of the MBSC, and send the multicast/broadcast IP stream to the AE through the fourth interface;
  • the multicast/broadcast IP stream sent by the CS is sent to the user equipment UE.
  • a method for transmitting a multicast broadcast service comprising:
  • the MBS CS multicasts the UE according to the session information obtained by the UE from the MBSC;
  • the CS converts the received MBS service content into a multicast/broadcast IP stream under the control of the MBSC, and sends the multicast/broadcast IP stream to the AE, and the AE sends the multicast/broadcast IP stream to the UE. .
  • MBS CS multicast broadcast service content server
  • MBS CP multicast broadcast service content under MBSC control
  • the multicast broadcast content provider delivers the service content into a multicast IP stream, and forwards the multicast IP stream to the access network. Compared with the prior art, it has the following advantages:
  • [23] Proposed the architecture of the system for conducting multicast broadcasting services in the BWA network, and solved WiMAX and D.
  • the BWA network such as SL carries out the problem of multicast broadcasting service.
  • the multicast broadcast system of the present invention realizes the separation of control and bearer in the provision of the multicast broadcast service, and is more suitable for the operation and deployment trend of the existing core network.
  • the MBS process of the multicast broadcast system of the present invention is taken as an example of a WiMAX network.
  • FIG. 1 is a schematic diagram of a WiMAX network architecture
  • FIG. 2 is a schematic diagram of unicast and multicast modes
  • FIG. 3 is a schematic structural diagram of Embodiment 1 of a multicast broadcast system according to the present invention
  • 4 is a schematic structural diagram of Embodiment 2 of a multicast broadcast system according to the present invention
  • FIG. 5 is a schematic structural diagram of Embodiment 3 of the multicast broadcast system according to the present invention when the UE roams;
  • Embodiment 4 of the multicast broadcast system when the UE roams;
  • the present invention provides a multicast broadcast system and a method for transmitting a multicast broadcast service.
  • the present invention sets MBSC and MBS CS in a BWA network, and MBS CS will be MBS under the control of MBSC.
  • the service content provided by the CP is converted into a multicast IP flow, and the multicast IP flow is forwarded to the access network.
  • FIG. Embodiment 1 A schematic structural diagram of Embodiment 1 of the multicast broadcast system according to the present invention is shown in FIG. Embodiment 1 by: UE
  • NAP+NSP Network Access Point+Network Service Provider, network access operator and NSP network.
  • NAP+NSP includes the following units:
  • AE Access edge, access network edge node
  • AE-CP Access edge- Cortrol
  • AE control surface AE control surface
  • AE-DP Access edge-Data Plane, AE data plane
  • AN Access node, access node
  • AAA Authentication Authorization Accounting
  • MBS SPM Subscriber Profile Manager, MBS User Management Center
  • SPDB Subscriber Profile Database, User Management Database
  • Embodiment 2 A schematic structural diagram of Embodiment 2 of the multicast broadcast system according to the present invention is shown in FIG. Embodiment 2 is also composed of
  • UE and NAP+NSP The unit in the above embodiment 1 is also included in the NAP + NSP.
  • Embodiment 2 Unlike Embodiment 1, in Embodiment 2, AE-CP is integrated with MBSC, AE-DP and MB. S CS is integrated. MBSC is interconnected with AF.
  • the multicast broadcast system of the present invention is applicable to a BWA network such as a WiMAX network or a DSL (Digital Subscriber Line) network.
  • a BWA network such as a WiMAX network or a DSL (Digital Subscriber Line) network.
  • the access network is ASN (Access Service)
  • ASN GW ASN
  • AE-CP is ASN GW DP (ASN GW Decision Point 'ASN GW decision point)
  • AE-DP is ASN GW EP (ASN GW Enforcement Point, ASN GW enforcement point)
  • AN is BS (Base Station, base station).
  • AE-CP is Policy
  • AN is DSLAM (Digital Subscriber Line Access Multiplexer).
  • MBSC Interconnected with AAA server and MBS CS. Used to implement the following functions:
  • the MBS CP is authenticated and the service content transfer from the MBS CS to the MSB content server is managed.
  • MBSC When MBSC is separated from AE-CP, MBSC implements policy decision function and is connected to AF.
  • MBS CS Connect with MBS controller and MBS CP, MBSC and MBS
  • CS can be used by IETF (internet Engineering Task)
  • MBS CS Under MBSC control MBS CS will MBS
  • the service content provided by the CP is converted into a multicast IP stream and forwarded to the access network.
  • the CS is a streaming media encoder. If high-level encryption of the multicast IP stream is required, the MBS is in the MBS.
  • the MR is IETF compliant RFC standard multicast router. If MBS
  • the multicast IP stream between the CS and the access network is transmitted through the tunnel, and the MR can be omitted.
  • SPM Interconnects with SPDB and interconnects with the UE online or offline. Used to update the corresponding user information in the SPDB according to the user's subscription to the MBS.
  • SPM is interconnected; it can be placed in an AAA server.
  • User information for storing MBS User information for storing MBS.
  • CP The provider of MBS content, which can be provided by a third-party content provider or NSP itself.
  • AAA server used to authenticate, authorize and bill users or MBS services, and to MBS
  • the AAA server located in the hometown NSP is called hometown A.
  • H-AAA The AAA server located at the visited NSP (V-NSP) is called the visited place A
  • V-AAA AA server
  • AN It is used to establish or tear down the bearer between the UE and the AE, and multicast or broadcast the MBS service content to the user.
  • the base station also performs link layer encryption on the bearer service.
  • the multicast IP stream provided by the CS is forwarded to the AN and provides charging information to the AAA server. Its specific functions include:
  • Embodiment 3 and Embodiment 4 of the multicast broadcast system of the present invention is as shown in FIGS. 5 and 6.
  • FIG. 5 when the UE roams, the MBS is served by the V-NSP.
  • FIG. 6 when the UE roams, the MBS is served by the H-NSP and the V-NSP.
  • H-MBSC H-MBSC
  • V-MBSC V-MBSC
  • H-NSP's hometown MBS CS H-MBS CS
  • V-NSP's visited place MBS CS V-MBS
  • the service content provided by the CP is converted to IP multicast or broadcast stream and forwarded or directly forwarded to V-MBS.
  • the CS, V-MBS CS further converts the service content into an IP multicast or broadcast stream and forwards it to the access network.
  • the MBSC includes a six-part functional module.
  • Function used to provide authorization for users who request to activate MBS; can download subscription information of MBS users through AAA; generate billing records of MBS users;
  • MBS Function Used for MBS publishing and related information provision, providing users with MBS media descriptions (such as video and audio encoding types) and MBS session descriptions (such as MBS logo, address, and transmission time);
  • MBS Decision Management Module MBS Policy
  • the requirements are related, and the QOS request sent by the AF is converted into a QoS policy based on each user's multicast service at the network control layer, to the policy enforcement point (such as MSC).
  • the policy enforcement point such as MSC
  • the CP provides authentication and authorization; generates a billing record for the MBS CP; and MBS
  • CP interaction information (such as content provider name, program name, media description, etc.);
  • MBS CS consists of three functional modules:
  • the QoS policy Used to perform MBS session transmission scheduling according to the corresponding QoS policy, the QoS policy may be from the MBSC; label the MBS session identifier for each MBS session to distinguish the MBS session; establish and tear down the transmission channel, and transmit the MBS message To the access network; for WiMAX networks, MBS macro diversity synchronization is also provided;
  • the CS encrypts the media stream based on the key material information distributed by the MBSC.
  • MBSC connects to MBS CS via interface 1 and collects MBS
  • the CS generates the billing record of the MBS user; provides the MBS area and multicast CID management and maintenance for the access network by providing IP multicast address management; for the WiMAX network; CS distributes corresponding key material information;
  • MBSC contacts the UE through interface 2, providing authorization for users requesting activation of MBS; providing M to users
  • MBS CS transmits MBS content to the access network via interface 4;
  • H-MBS H-MBS
  • the CS can also transmit MBS content to the V-NSP through the interface 4;
  • the AE in the multicast system sends a multicast request to the multicast router according to the MBS session information, and the multicast router joins the multicast user node to the multicast group, and establishes and Transmitting a link between multicast user nodes and transmitting MBS service content to all multicast user nodes in the multicast group;
  • V-MBS CS establishes a tunnel connection
  • V-MBS CS can also be based on H-MBS CS session information
  • the multicast IP stream sent by the CS is transmitted to the AE through the tunnel connection and sent to the user equipment via the AN.
  • the CS connects to the MBSC through the interface 5, and provides the MBSC user's charging record to the MBSC; accepts the multicast address management and the corresponding key material information;
  • MBSC connects to the AAA server through interface 6, and obtains MBS user authentication and authorization information;
  • MBSC forwards the billing record of the MBS user collected by MBS CS to the AAA server through interface 6;
  • the MBS CS is connected to the MBS CP through the interface 7, and receives the MBS content transmission from the MBS CP;
  • Eighth interface interface 8) (optional):
  • MBSC is connected to MBS CP via interface 8 for MBS
  • CP provides authentication and authorization and billing records
  • CP interaction information (such as content provider name, program name, media description, etc.);
  • the MBSC connects to the AF through the interface 9, and interacts with the application layer information;
  • V-MBSC connects to H-MBSC through interface 10, and forwards to H-MBSC to V-MBS
  • V-MBS CS is connected to H-MBS CS via interface 11, receiving from H-MBS
  • Embodiment 1 Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4, taking the WiMAX network as an example, the MBS flowchart of the multicast broadcast system of the present invention is as shown in FIG. 9, and includes the following steps.
  • MBSC publishes available MBS information (such as program name) and parameters (such as program start time) to the user; the user accesses the MBS controller through the application on the MS to obtain the program list of the MBS service content.
  • MBS information such as program name
  • parameters such as program start time
  • the program information such as the program name and the start of the program can be obtained through the program list; in addition, the operator can provide the program list to the user through advertisements, short messages, and the like.
  • the user subscribes to the MBS program based on the program listing. If the user needs to subscribe to an encrypted program, they need to obtain a key. For example, the user opens an account or channel and writes the initial key into the terminal card. This step is optional and can occur before step 1.
  • MS and MBSC communicate to obtain MBS session information (such as mapping between IP multicast address and corresponding SFID or CID)
  • the MSS initiates an MBS session information request message to the ASN by using the MS.
  • the ASN initiates an authentication request to the AAA server.
  • the AAA server obtains the session information of the MBS from the MBSC;
  • the AAA server returns an authentication response of the session information including the MBS to the ASN.
  • the ASN returns a session information response message of the MBS to the MS.
  • MS passes BS's DL-MAP (Downlink Mapping)
  • the message determines whether the air interface broadcast channel specified by the corresponding SFID/CID or program identifier is available, if yes, continue with steps 9-12; otherwise, re-enter the content availability determination process, or notify the user content Not available; this step is unique to WiMAX systems.
  • the MS initiates a link registration request, notifying the network that it initially listens to the MBS, and requires the network to send the MBS data stream specified by the corresponding SFI D/CID or program identifier; the operator can configure the network parameter to notify the MS whether MBS is needed. Registration and MBS cancellation;
  • the CS/MR sends a multicast join request, and the MBS CS/MR joins the user to the multicast group.
  • the CS notifies the AAA server and the MBSC to start charging, and the AAA server returns a charging start response.
  • the CS/MR sends a multicast IP stream to the user equipment, and the user equipment receives the MBS data stream specified by the corresponding SFID/CID or program identifier.
  • the MS through the MBS logout process, notifies the network that it no longer listens to the MBS specified by the corresponding SFID/CID or program identifier, and requires the network to stop sending the MBS data stream specified by the corresponding SFID/CID or program identifier;
  • the ASN deletes the MBS information of the user, and returns a logout response message to the user equipment.
  • CS/MR deletes the user from the multicast group:
  • the CS sends a stop charging request to the AAA server, and the AAA server and MBSC stop charging and return a charging response.

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

Abstract

L'invention concerne un système de multidiffusion/diffusion et un procédé pour le transfert du service de multidiffusion/diffusion, le système comprend principalement: un MBSC (contrôleur de service de multidiffusion/diffusion) et un MBSCS (serveur de contenu de service de multidiffusion/diffusion), le MBSC se connectant au MBSCS et assurant une gestion d'adresse de multidiffusion IP; le MBSCS qui se connecte à l'AE convertit le contenu de service MBS en flux IP de multidiffusion/diffusion sous le contrôle du MBSC, et transfère le flux IP de multidiffusion/diffusion vers l'AE par l'intermédiaire de la quatrième interface; l'AE reçoit le flux IP de multidiffusion/diffusion envoyé par le MBSCS et le transfère vers l'équipement utilisateur UE. Le procédé comprend principalement les étapes suivantes: le MBMS permet la participation à la multidiffusion sur l'UE en fonction des informations de session obtenues à partir de l'UE, le MBSCS convertit le contenu de service MBS reçu en un flux IP de multidiffusion/diffusion sous l'influence du MBSC et transfère le flux IP de multidiffusion/diffusion vers l'AE, l'AE transférant le flux IP de multidiffusion/diffusion vers l'UE. Le service de multidiffusion/diffusion peut être mis en oeuvre par l'intermédiaire d'un réseau BWA (accès sans fil large bande) tel que WiMAX (interopérabilité mondiale pour l'accès micro-ondes), DSL (ligne d'abonné numérique), etc. selon l'invention.
PCT/CN2007/070741 2006-09-20 2007-09-20 Système de multidiffusion/diffusion et procédé pour le transfert d'un service de multidiffusion/diffusion WO2008040244A1 (fr)

Applications Claiming Priority (2)

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CNB2006101522201A CN100558041C (zh) 2006-09-20 2006-09-20 组播广播系统
CN200610152220.1 2006-09-20

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WO2008040244A1 true WO2008040244A1 (fr) 2008-04-10

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CN101296106B (zh) * 2008-06-27 2012-04-18 中兴通讯股份有限公司 一种组播广播业务鉴权的方法
CN101656615B (zh) 2008-08-23 2012-02-22 华为技术有限公司 一种多播广播业务管理方法、装置与系统
CN101741581B (zh) * 2008-11-05 2012-09-05 华为技术有限公司 一种多播广播业务的计费方法及装置
US8897256B2 (en) * 2009-04-07 2014-11-25 Qualcomm Incorporated Methods and apparatus for providing broadcast content over a unicast channel
CN105871489B (zh) * 2015-10-14 2019-08-02 深圳市飞图视讯有限公司 校园广播系统
CN111556540B (zh) * 2020-05-13 2024-05-17 腾讯科技（深圳）有限公司 Smf实体执行的方法及smf实体、pcf实体执行的方法及pcf实体

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WO2003001717A2 (fr) * 2001-06-21 2003-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Multidiffusion dans un reseau de telecommunication a commutation par paquets oriente point a point
CN1404259A (zh) * 2001-09-13 2003-03-19 华为技术有限公司 业务节点受控组播方法

Patent Citations (2)

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WO2003001717A2 (fr) * 2001-06-21 2003-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Multidiffusion dans un reseau de telecommunication a commutation par paquets oriente point a point
CN1404259A (zh) * 2001-09-13 2003-03-19 华为技术有限公司 业务节点受控组播方法

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