WO2007093103A1 - Procédé et dispositif d'activation d'un service de diffusion/multidiffusion multimedia - Google Patents

Procédé et dispositif d'activation d'un service de diffusion/multidiffusion multimedia Download PDF

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Publication number
WO2007093103A1
WO2007093103A1 PCT/CN2006/003119 CN2006003119W WO2007093103A1 WO 2007093103 A1 WO2007093103 A1 WO 2007093103A1 CN 2006003119 W CN2006003119 W CN 2006003119W WO 2007093103 A1 WO2007093103 A1 WO 2007093103A1
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WO
WIPO (PCT)
Prior art keywords
multimedia broadcast
multicast service
mbms
multicast
broadcast
Prior art date
Application number
PCT/CN2006/003119
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English (en)
Chinese (zh)
Inventor
Jing Chen
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 WO2007093103A1 publication Critical patent/WO2007093103A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for activating a multimedia broadcast/multicast service.
  • multimedia services such as multicast and broadcast, which are technologies for transmitting data messages from one data source to multiple targets. Its application business mainly requires multiple users to receive the same data at the same time, such as video on demand, TV broadcast, video conferencing, online education or interactive games. Compared with general data, these multimedia services have the characteristics of large data volume, long duration, and delay sensitivity. Since the mobile network has a specific network structure, functional entity and wireless interface, which is different from the wired IP network, the current IP multicast service is only applicable to the wired IP network, and is not applicable to the mobile network.
  • MBMS Multimedia Broadcast/Multicast Service
  • 3GPP Third Generation Partnership Projects
  • MBMS Multimedia Broadcast/Multicast Service
  • Point-to-multipoint service that sends data to multiple users, realizes network resource sharing, and improves utilization of network resources, especially air interface resources.
  • MBMS defined by 3GPP can not only realize plain text low-rate message class multicast and broadcast, but also realize multicast and broadcast of high-speed multimedia services.
  • FIG. 1 Please refer to Figure 1 for a schematic diagram of a multimedia broadcast/multicast service network.
  • the edge of the MBMS bearer service is a Gmb, Gi reference point, that is, an interface between a broadcast multicast service center (BM-SC) and a gateway GPRS (General Packet Radio Service Node) support node (GGSN).
  • BM-SC broadcast multicast service center
  • GGSN gateway GPRS (General Packet Radio Service Node) support node
  • the Gmb interface provides the control plane function
  • the Gi interface provides the user plane bearer function.
  • the BM-SC is an entry for a content provider/multicast broadcast content source for authorization and transfer
  • the MBMS bearer service is initiated in the mobile network, and the MBMS content is transmitted according to a scheduled schedule. Its functions include authentication, authorization and charging for third-party content providers; providing MBMS transmission related parameters such as Quality of Service (QoS), multicast broadcast area, originating and terminating MBMS transmission resources; from external data sources Receive and transmit MBMS content, schedule MBMS session transmission and inform users, session retransmission, etc.; service statement, including media description, session description such as multicast service identifier, address, transmission time, etc.
  • the content provider/multicast broadcast content source can provide content to the BM-SC through a Packet Data Network (PDN), such as the internet.
  • PDN Packet Data Network
  • GGS is an IP multicast service node of MBMS data, which establishes or releases an MBMS bearer with a Serving GPRS Supporting Node (SGSN) for broadcast or multicast transmission according to the request of the BM-SC, from BM-SC or other
  • the data source 'receives IP broadcast/multicast content and transmits it to the relevant SGSN through a GPRS Tunneling Protocol (GTP) tunnel.
  • GTP GPRS Tunneling Protocol
  • the SGSN performs network control on the user, supports the movement of the MBMS receiver between the SGSNs, establishes or releases the MBMS bearer with the GGSN according to the request of the GGSN, and transmits the broadcast/multicast data to the radio access network (Radio Access Network, RAN). ), such as Universal Terrestrial Radio Access Network (UTRAN), GSM/EDGE Radio Access Network (GERAN).
  • UTRAN Universal Terrestrial Radio Access Network
  • GERAN GSM/EDGE Radio Access Network
  • the SGSN obtains user information through a Home Location Register (I-ILR).
  • I-ILR Home Location Register
  • the RAN establishes or releases an MBMS bearer with the SGSN according to the request of the SGSN, selects a shared channel or a dedicated channel to transmit the MBMS service in a predetermined broadcast/multicast service area, supports the core network to initiate and terminate the MBMS transmission, and supports the MBMS receiver to
  • the movement between the Radio Network Controller (RNC) supports the transmission of MBMS service announcements, paging information, and MBMS parallel services, such as receiving MBMS video content while performing voice calls and messaging services.
  • RNC Radio Network Controller
  • UE User Equipment
  • Gn/Gp represents an interface between the SGSN and the GGSN
  • Gi represents an interface between the BM-SC and the GGSN
  • the interface protocol is an Internet Group Management Protocol (IGMP).
  • Gmb represents the interface between the BM-SC and the GGSN and the interface protocol is dedicated to passing MBMS signaling parameters.
  • Gr represents the interface between the SGSN and the HLR.
  • Iu represents the interface between the SGSN and the UTRAN.
  • Iu/Gb represents the interface between the SGSN and the GERAN.
  • the UE communicates with the UTRAN and GERAN through the Uu and Um interfaces respectively.
  • An MBMS service has a distribution tree during a session, as shown in Figure 2.
  • the root of the tree is in the BM-SC, and the leaves are all UEs ready to receive this service.
  • other nodes maintain a list of downstream nodes.
  • the upstream node sends session data to the designated downstream node through the MBMS bearer between these nodes. For each downstream node, only one session of the session data is sent, which is then distributed by the downstream node.
  • the main process of multicast service is shown in Figure 3. It includes subscription, service announcement, Joining, session start, MBMS notification, and data transmission. ( Data transfer ), session termination (Session Stop) and leaving (Leaving).
  • Joining is a process in which a subscriber joins a multicast group, that is, the user notifies the network that it wants to receive data of a certain multicast service.
  • the Joining process is completed by the MBMS activation process, and is also a process of establishing a multicast distribution tree.
  • the downstream node finds that the upstream node has not established an MBMS bearer relationship, that is, it does not join the downstream node list of the upstream node, it joins the downstream node list of the upstream node through the registration process, thereby joining the multicast distribution tree. in.
  • the MBMS bearer relationship is established between the downstream node and the upstream node, and the MBMS bearer of the user plane is not actually established, and the required resources are not allocated for the MBMS bearer.
  • the user plane MBMS bearer is actually established, the required resources are allocated, and a certain QoS is provided for transmitting the MBMS session data.
  • FIG. 4 shows the MBMS activation process, which is detailed below:
  • the UE activates a Packet Data Protocol (PDP) context (PDP Context Activation).
  • PDP Packet Data Protocol
  • the UE informs the GGSN through the PDP context that it wishes to join a specific multicast group (IGMP Join).
  • IGMP Join a specific multicast group
  • GGS sends an MBMS authentication request to the BM-SC (MBMS Authorization)
  • the BM-SC determines whether to allow the user to join the group according to the subscription information of the user.
  • the BM-SC informs the GGSN of the authentication result by the MBMS Authorization Response message, and terminates the process if the authentication fails, otherwise, the subsequent process is performed.
  • GGSN sends an MBMS notification request to the SGSN (MBMS Notification)
  • the message, the notification SGSN, the UE requests to join a specific multicast group.
  • the SGSN returns an MBMS Notification Response (MBMS Notification Response) message to the GGSN, indicating to the GGSN whether the SGSN allows the activation process to continue.
  • MBMS Notification Response MBMS Notification Response
  • the SGSN sends a Request MBMS Context Activation message to the UE requesting the UE to initiate an MBMS activation procedure.
  • the UE sends an Activate MBMS Context Request message to the SGSN to request activation.
  • the message carries the MBMS support capability of the UE. If the MBMS bearer relationship has been established between the SGSN and the GGSN, the SGSN compares the support capability required by the MBMS bearer with the support capability of the UE, if the MBMS branch of the UE The SGSN will send an Activate MBMS Context Reject message to the UE, which is less than the support capability required for the MBMS bearer.
  • the SGSN If the MBMS UE context is established in the SGSN, the following procedure is performed; if the MBMS UE context is not established in the SGSN, the SGSN sends an MBMS Notification Reject Request message request rejection to the GGSN, and the GGS returns to the SGSN.
  • the MBMS Notification Reject Response message prevents the subsequent process of continuing to send the MBMS Notification Request message to the end.
  • the SGSN In Gb mode, if the tracking function is activated, the SGSN notifies the RAN side of the Invoke Trace.
  • the SGSN sends a Create MBMS Context Request to the GGSN (Create MBMS)
  • the GGSN may not be the same GGSN as the GGSN in steps 2 ⁇ 4.
  • GGSN sends MBMS Authorization Request to BM-SC, request
  • the BM-SC establishes the MBMS UE context.
  • the BM-SC establishes the MBMS UE context and notifies the GGSN result via the MBMS Authorization Response message.
  • the GGSN If the MBMS bearer relationship has not been established for the multicast service between the GGSN and the BM-SC, the GGSN sends an MBMS Registration Request message to the BM-SC requesting to establish an MBMS bearer relationship.
  • the BM-SC allocates a temporary mobility group identifier for the MBMS, and the identifier arrives at the GGSN and the SGSN through an MBMS Registration Response message, and is sent to the BM-SC to the GGSN by activating an Activate MBMS Context Accept message. Return the MBMS Registration Response message and put
  • the GGSN is added to the downstream node list.
  • the GGSN establishes the MBMS Context and returns a Create VMSMS Context Response message to the SGSN.
  • the SGSN sends an MBMS Registration Request message to the GGSN to establish an MBMS bearer relationship.
  • the GGSN returns an MBMS Registration Response message to the SGSN and adds the SGSN to the downstream node list.
  • the SGSN provides the MBMS UE context to the RAN.
  • the SGSN In 16Ju mode, if the tracking function is activated, the SGSN notifies the RAN side to activate tracking. 17. The SGSN sends an Activate MBMS Context Accept message to the MS. This message contains the support capabilities required for the MBMS bearer. This capability needs to be considered when the UE needs to activate the MBMS service. If the SGSN does not establish an MBMS ⁇ relationship between the SGSN and the GGSN in step 6, and thus does not compare the support capability required by the MBMS bearer with the support capability of the UE, the comparison is performed in this step. If the UE's MBMS support capability is less than the support capability required for the MBMS bearer, the SGSN will send an Activate MBMS Context Reject message to the UE.
  • the MBMS Registration Response message code sent by the GGSN to the SGSN in the above process is not included.
  • the MBMS carries the required support capability information, which causes the SGSN to fail to compare the support capabilities required for the MBMS bearer with the MBMS support capabilities of the UE. For example, an MS supports a downlink rate of 64 kbps, but the downlink rate of the MBMS service is 128 kbps of video data, resulting in an unclear picture quality or a discontinuous picture frame skipping. In this way, the user does not get satisfactory service, and each network element wastes resources.
  • the technical problem to be solved by the present invention is to provide a method and device for activating a multimedia broadcast/multicast service, so as to solve the problem that the SGSN cannot compare the support capability required for the MBMS bearer and the MBMS support capability of the UE in the MBMS activation process.
  • the present invention provides a multimedia broadcast/multicast service activation.
  • the method includes:
  • the service GPRS support node sends a registration request message of the multimedia broadcast/multicast service to the gateway GPRS support node, requesting to establish a multimedia broadcast/multicast service bearer relationship;
  • the gateway GPRS support node returns the support capability information required for the multimedia broadcast/multicast service bearer to the serving GPRS support node.
  • the present invention further provides a multimedia broadcast/multicast service activation apparatus for activating a media multicast/broadcast service between a serving GPRS support node and a gateway GPRS support node, the apparatus comprising:
  • a registration requesting unit configured to receive a multimedia multicast/broadcast service registration request message sent by the GPRS support node to the gateway GPRS support node;
  • the registration response unit is connected to the registration request unit and is configured to respond to the support capability information required for the multimedia multicast/broadcast service bearer required for the registration request information.
  • the support capability information required for the MBMS bearer is sent to The service support node SGSN enables the SGSN to compare the support capabilities required for the MBMS bearer with the MBMS support capabilities of the UE.
  • FIG. 1 is a network reference model diagram of a multimedia broadcast/multicast service in the prior art
  • FIG. 2 is a schematic diagram of a multimedia broadcast/multicast service service session distribution tree in the prior art
  • FIG. 3 is a multimedia broadcast/multicast in the prior art. Schematic diagram of the stage of the service multicast service
  • FIG. 4 is a flow chart of the activation of the multimedia broadcast/multicast service in the prior art
  • FIG. 5 is a flow chart of a method for activating a multimedia broadcast/multicast service according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of an apparatus for activating a multimedia broadcast/multicast service according to an embodiment of the present invention.
  • the present invention adds the "support capability information required for the MBMS bearer in the MBMS Registration Response message sent by the GGSN to the SGSN" based on the prior art (as shown in FIG. 4). The specific process is as shown in FIG. .
  • FIG. 5 is an MBMS activation process provided on the basis of FIG. 4 according to an embodiment of the present invention.
  • the steps in the figure that are the same as the prior art are specifically described in the background art, and are not described herein again.
  • the difference is In step 14, the GGSN returns the support capability information required to carry the MBMS bearer in the MBMS Registration Response message to the SGSN, which is described in detail below.
  • the present invention enhances the MBMS Registration Response message encoding.
  • "MBMS bears the required support capability” cell the cell is a conditional cell, and when the "MBMS Registration Response message” indicates that the "MBMS registration request message” request is accepted, the cell needs to be carried, and MBMS Registration Response When the Cause cell value in the message is 128, the cell needs to be carried.
  • the MBMS Registration Response message structure table 1 added with the "support capability required for MBMS bearer" is shown in Table 1:
  • the cell coding method is shown in Table 2: Table 2 8 7 6 5 4 3 2 1
  • the Required MBMS bearer capabilities IEI field may use the cell identifier that is currently unused.
  • Length of Required MBMS bearer capabilities The field identifies the length of the subsequent MBMS bearer capabilities portion of the cell, in bytes.
  • the Required MBMS bearer capabilities portion is measured by the Maximum bit rate for downlink.
  • the Maximum bit rate for downlink can be used.
  • the Required MBMS bearer capabilities section can take a variety of expressions. As an embodiment of the present invention, the Required MBMS bearer capabilities section can use the expressions shown in Table 3:
  • 64 ⁇ 127 means 64 ⁇ 568kbit/s, increasing by 8kbit/s
  • 128 ⁇ 254 means 576 ⁇ 8640kbit/s, which is incremented by 64kbit/s
  • 255 means 0kbit/s.
  • the Maximum bit rate for downlink parameter is filled in 254 and carries the Maximum bit rate for downlink (extended) parameter.
  • the meaning of the value of the maximum bit rate for downlink (extended) parameter is shown in Table 4: 0 ⁇ 74 means 8600 ⁇ 16000kbit7s, incrementing by 100kbit/s.
  • the Required MBMS bearer capabilities part can directly represent the maximum downlink bit rate in units of kbit/s, and the value ranges from 1 to 16000 kbit/s.
  • the present invention adds the cell to the existing technology, that is, in the MBMS Registration Response message encoding, the "support capability required for MBMS bearer" cell is added.
  • the SGSN can compare the capability of the MS with the capability required for the MBMS bearer. If the capability of the MS does not support the MBMS service, the SGSN directly denies the user access to the MBMS service. Conversely, if the capability of the MS supports the In the MBMS service, the MS is allowed to access, and the network elements such as the SGSN, the GGSN, and the RNC all allocate related resources for the MS, and the SGSN carries the MBMS in the Activate MBMS Context Accept message sent to the MS. The required QoS notification is sent to the MS, and the MS can receive the MBMS service according to the QoS required by the MBMS T
  • an embodiment of the present invention further provides a device for activating a multimedia broadcast/multicast service, which is used to activate a media multicast/broadcast service between a service support node and a gateway support node, where The structure is shown in FIG. 6.
  • the device includes: a registration request unit 61 and a registration response unit 62, where the registration request unit 61 is configured to receive a multimedia multicast/broadcast service registration sent by the service support node to the gateway support node.
  • the request response unit 62 is connected to the registration request unit 61 for responding to the support capability information required for the multimedia multicast/broadcast service bearer required for the registration request information.
  • the support capability information required for the multimedia multicast/broadcast service bearer is a conditional cell.
  • the MBMS registration response message indicates that the request is accepted, the MBMS registration response message carries the support capability information required for the MBMS bearer.
  • the support capability information includes: a support capability cell length required for the MBMS bearer, and a support capability required for the MBMS bearer and a support capability cell identifier required for the MBMS bearer.

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

Abstract

L'invention concerne un procédé et un dispositif d'activation d'un service de diffusion/multidiffusion multimédia (MBMS), où le noeud de prise en charge du service général de radiocommunication par paquets (GPRS) transfère un message de demande d'enregistrement du service MBMS au noeud de prise en charge du GPRS passerelle afin d'établir un rapport de prise en charge du service MBMS. Ce noeud de prise en charge du GPRS passerelle renvoie un message de capacité de prise en charge demandé par le MBMS reconnaissant le noeud de prise en charge du GPRS. Le dispositif comprend une unité de demande d'enregistrement et une unité de réponse à l'enregistrement. L'invention permet de résoudre le problème lié à l'activation courante du MBMS, où le noeud de prise en charge de GPRS (SGSN) ne peut comparer la capacité de prise en charge requise par le MBMS avec la capacité de prise en charge requise par le MBMS de l'équipement utilisateur (UE).
PCT/CN2006/003119 2006-02-14 2006-11-20 Procédé et dispositif d'activation d'un service de diffusion/multidiffusion multimedia WO2007093103A1 (fr)

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CNA2006100336588A CN1859406A (zh) 2006-02-14 2006-02-14 一种多媒体广播/组播业务激活的方法
CN200610033658.8 2006-02-14

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CN101227352B (zh) * 2007-01-15 2011-02-09 华为技术有限公司 用户终端紧急注册到ip连接接入网络的方法及系统
CN101312553B (zh) * 2007-05-25 2011-11-30 中兴通讯股份有限公司 多媒体广播/组播业务的监测方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004064270A1 (fr) * 2003-01-06 2004-07-29 Interdigital Technology Corporation Procede et systeme pour le controle de la distribution de services de diffusion de multimedias
WO2005050929A1 (fr) * 2003-10-31 2005-06-02 Siemens Mobile Communications S.P.A. Procede et appareil pour le telechargement massif de logiciels dans des systemes de communication mobile et systeme de communication mobile prenant en charge ce telechargement
CN1642132A (zh) * 2004-03-29 2005-07-20 华为技术有限公司 一种实现多媒体广播/组播服务业务激活的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004064270A1 (fr) * 2003-01-06 2004-07-29 Interdigital Technology Corporation Procede et systeme pour le controle de la distribution de services de diffusion de multimedias
WO2005050929A1 (fr) * 2003-10-31 2005-06-02 Siemens Mobile Communications S.P.A. Procede et appareil pour le telechargement massif de logiciels dans des systemes de communication mobile et systeme de communication mobile prenant en charge ce telechargement
CN1642132A (zh) * 2004-03-29 2005-07-20 华为技术有限公司 一种实现多媒体广播/组播服务业务激活的方法

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