WO2008025206A1 - A method and network for creating the control plane tunnel in the multicast service of the mobile communicating system - Google Patents

A method and network for creating the control plane tunnel in the multicast service of the mobile communicating system Download PDF

Info

Publication number
WO2008025206A1
WO2008025206A1 PCT/CN2007/001616 CN2007001616W WO2008025206A1 WO 2008025206 A1 WO2008025206 A1 WO 2008025206A1 CN 2007001616 W CN2007001616 W CN 2007001616W WO 2008025206 A1 WO2008025206 A1 WO 2008025206A1
Authority
WO
WIPO (PCT)
Prior art keywords
mbms
sgsn
ggsn
bearer context
tunnel
Prior art date
Application number
PCT/CN2007/001616
Other languages
French (fr)
Chinese (zh)
Inventor
Xiaoyong Tu
Jiannan Cai
Zhihai Wang
Original Assignee
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 WO2008025206A1 publication Critical patent/WO2008025206A1/en

Links

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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/24—Interfaces between hierarchically similar devices between backbone network devices

Definitions

  • the present invention relates to a mobile communication system broadcast multicast service (MBMS), and more particularly to a method and network for establishing a GPRS tunnel protocol control plane tunnel in a mobile communication system multicast service.
  • MBMS mobile communication system broadcast multicast service
  • MBMS Multimedia Broadcast/Multicast Service
  • GTP GPRS Tunneling Protocol
  • GPRS General Packet Radio Service
  • GTP-C GPRS Tunneling Protocol for Control Plane
  • GPRS tunneling protocol control plane GPRS tunneling protocol control plane
  • GSN GPRS Supporting Node
  • GPRS support node GPRS support node
  • SGSN Service GSN
  • GPRS support node is a network element responsible for mobility management at the core network side
  • GGSN Gateway GSN
  • the gateway GPRS support node is the network element that the core network side is responsible for accessing and sending out of the core network
  • the TEID identifies a tunnel in a network element, and the GTP tunnel between the SGSN and the GGSN is identified by the TEID.
  • TEID-C used to control the tunnel identifier of the surface.
  • MBMS broadcast multicast transmission services
  • MBMS provides a point-to-multipoint service in which data sources send data to multiple users in a mobile network, realizes network resource sharing, and improves utilization of network resources, especially air interface resources.
  • MBMS provides two methods: broadcast mode and multicast mode.
  • MBMS can not only realize plain text low-rate message class multicast and broadcast, but also realize high-speed multimedia service multicast and broadcast.
  • Multicast and broadcast services MBMS is based on WCDMA/GSM packet network.
  • Add some new functional entities such as the broadcast multicast service center BM-SC, to existing packet domain functional entities such as SGSN (Packet Service Node), GGSN (Packet Gateway Node), RAN (Radio Access Network) and UE (Set-up terminal) Increases the MBMS function and defines a new logical shared channel to implement air interface resource sharing.
  • the network architecture using MBMS under the mobile communication system is shown in Figure 1.
  • the rest are the bearer network elements of the mobile communication system, which are used to complete the data transmission function.
  • the signaling exchange between the GGS and the BM-SC is performed at the Gmb reference point to implement the control plane of the MBMS, including the following signaling:
  • the GGSN establishes the bearer context of the MBMS and registers with the BM-SC;
  • the GGSN or BM-SC releases the MBMS bearer context, the GGSN registers with the BM-SC; - The BM-SC informs the GGSN of the start and end of the session.
  • a series of steps and signaling interactions are required, including at least service notification, access procedures for users joining broadcast or multicast groups (including activation, registration, etc.), and leaving (including deactivation, logout, etc.) A step of.
  • the existing MBMS mechanism adds an MBMS Bearer Context (MBMS Bearer Context) to the existing packet domain core network function entities SGSN and GGSN to record information about a certain service.
  • MBMS Bearer Context MBMS Bearer Context
  • the IP multicast address the APN (Access Point Name), the TMGI (Temporary Mobile Group Identities), and the downlink node list (list of Downstream nodes ) and other information.
  • the downlink node list lists the address information of the next network node to which the downlink data is to be reached.
  • the downlink node list of the BM-SC is to receive the address information of all GGSNs of the service.
  • the address information here may be a network node identifier or an IP address or the like that enables the downlink data to arrive, but the specific content and format of the ID in the downlink node list have not yet been defined.
  • the establishment of the MBMS bearer context in the multicast service is completed by using the registration message.
  • the network element that can send the MBMS registration request message includes the RC (Radio Network Controller), the SGSN, and the GGSN.
  • the registration process is shown in Figure 2.
  • the registration message is encapsulated by the GTP protocol.
  • the registration request and response message there is no parameter that can identify the GSN (this is the collective name of the SGSN and the GGSN), so that the network element receiving the registration request may obtain the response message from the source address in the header of the IP packet. Destination address. Processing logic from the protocol layer Unreasonable.
  • the GTP-C tunnel is established between the two network elements in the GTP-C.
  • the specific implementation is to bring the GTP-C in the signaling message between the two NEs.
  • Information including network element address and TEID.
  • the prior art defines the establishment of the tunnel in the Session Start process, that is, the GSN address and the TEID parameter are included in the process message.
  • the GSN address information is not saved, and it is unreasonable. If there is multiple Session Start processes in the middle of an MBMS service, the network load is increased.
  • the multicast service is defined to obtain the node identifier in the registration process, there is no parameter information indicating the identifier in the parameters of the registration related message;
  • GSN address or the GSN address and the TEID are used as the format of the node identifier, such information has been defined by the Session Start after registration, rather than being acquired in the registration process;
  • the existing Session Start message has parameters such as GSN address and TEID, but there is no parameter information such as GSN address in the MBMS bearer context.
  • the technical problem to be solved by the present invention is to provide a method and a network for establishing a control plane tunnel in a broadcast multicast service of a mobile communication system, to overcome the problems existing in the prior art, and to make the registration and session process of the MBMS service more reasonable, and at the same time Reduce network load.
  • the technical solution adopted by the invention is:
  • the present invention provides a method for establishing a control plane tunnel in a multicast service of a mobile communication system.
  • the establishment of the control plane tunnel is performed in a registration process, and includes the following steps:
  • step (b) After receiving the MBMS registration request message, the GGSN saves the tunnel identification information of the SGS, and determines whether there is an MBMS bearer context. If yes, perform step (c); if not, create an MBMS bearer context, and send the MBMS bearer context to the broadcast group.
  • the broadcast service center BM-SC sends an MBMS registration request message, and after the BM-SC returns an MBMS registration response message, step (c) is performed;
  • the GGSN stores the tunnel identification information of the SGSN in the MBMS bearer context, and returns an MBMS registration response message to the SGSN, where the message carries the tunnel identification information of the GGSN;
  • the SGSN After receiving the MBMS registration response message, the SGSN saves the tunnel identification information of the GGSN. Further, the tunnel identifier information of the SGSN includes the tunnel identifier TEID-C of the SGSN and the control plane IP address of the SGSN, and the tunnel identifier information of the GGSN includes the TEID-C of the GGSN and the IP address of the GGSN control plane.
  • the GGSN saves the tunnel identity information of the SGSN in the MBMS bearer context by storing the control plane IP address of the SGSN or the control plane IP address and TEID-C of the SGSN in the MBMS bearer context.
  • tunnel identity information is stored in a downlink node list parameter in the MBMS bearer context.
  • step (a) after the SGSN creates the MBMS bearer context, the SGSN adds an IP multicast address and an access point name APN, and the MBMS registration request message sent by the SGSN to the GGSN further carries an IP multicast address and APN.
  • step (b) after receiving the MBMS registration request message, the BM-SC adds the tunnel identification information of the GGSN to the MBMS bearer context, and returns an MBMS registration response message to the GGSN, where the message carries the temporary mobility group. Identification and required MBMS capacity.
  • the method further includes: the wireless mesh controller RNC sending an MBMS registration request to the SGSN to which it belongs; after the step (d), further comprising the step (e): the SGSN adds the identifier of the RC to The MBMS bears the context and returns an MBMS registration response message to the RC.
  • step (e) if the SGSN receives the MBMS registration request of the RNC and When there is an MBMS bearer context on the SGSN, step (e) is directly executed.
  • steps (b), (c), and (d) after the network element returns the MBMS registration response message, if the MBMS bearer context is active at this time, the network element initiates a session start procedure.
  • the invention also provides a network for establishing a control plane tunnel in a multicast service of a mobile communication system, comprising a service GPRS support node SGSN, a gateway GPRS support node GGSN, and a broadcast multicast service center BM-SC, wherein:
  • the SGSN is configured to: when there is no MBMS bearer context, create an MBMS bearer context and send an MBMS registration request message with SGSN tunnel identity information to the GGSN, and receive the MBMS registration with the GGSN tunnel identity information sent by the GGSN to the GGSN.
  • Response message when there is no MBMS bearer context, create an MBMS bearer context and send an MBMS registration request message with SGSN tunnel identity information to the GGSN, and receive the MBMS registration with the GGSN tunnel identity information sent by the GGSN to the GGSN.
  • the GGSN is configured to receive an MBMS registration request message with the SGSN tunnel identification information sent by the SGSN; when there is no MBMS bearer context on the GGSN, the GGSN is configured to send the MBMS registration request message to the BM-SC, and is used for receiving The MBMS registration response message returned by the BM-SC to the SGSN is also used to send the MBMS registration response message to the SGSN when receiving the MBMS registration response message sent by the BM-SC or the MBMS bearer context on the GGSN;
  • the BM-SC is configured to receive an MBMS registration request message sent by the GGSN, and send the MBMS registration response message to the GGSN.
  • a radio network controller RNC is further included.
  • the RNC detects that the UE it controls is to use the MBMS service
  • the RC is used to send an MBMS registration request message to the SGSN, and is used to receive an MBMS registration response message sent by the SGSN to the SGSN.
  • the SGSN is further configured to receive an MBMS registration request message sent by the RNC, and send an MBMS registration response message to the RC.
  • the SGSN tunnel identification information includes the tunnel identifier TEID-C of the SGSN and the control plane IP address of the SGSN
  • the tunnel identifier information of the GGSN includes the TEID-C of the GGSN and the IP address of the GGSN control plane.
  • 1 is a network architecture diagram of using MBMS in a mobile communication system in the prior art
  • 2 is a flow chart of MBMS registration in the prior art
  • FIG. 3 is a flow chart of MBMS registration in an embodiment of the present invention. Preferred embodiment of the invention
  • a network for establishing a control plane tunnel in a mobile communication system multicast service including an SGSN, a GGSN, and a BM-SC and an RNC.
  • the SGSN is configured to send, to the GGSN, an MBMS registration request message with SGSN tunnel identification information (including the tunnel identifier TEID-C of the control plane and the control plane IP address of the SGSN of the SGSN) when there is no MBMS bearer context thereon, and For receiving an MBMS registration response message sent by the GGSN with GGSN tunnel identification information (including the TEID-C and GGSN control plane IP address of the GGSN); the SGSN is further configured to receive an MBMS registration request message sent by the RC to the MSCSN. And send an MBMS registration response message to the RC.
  • SGSN tunnel identification information including the tunnel identifier TEID-C of the control plane and the control plane IP address of the SGSN
  • the GGSN is configured to receive an MBMS registration request message with the SGSN tunnel identification information sent by the SGSN.
  • the GGSN is configured to send an MBMS registration request message to the BM-SC, and is used to receive the BM-SC direction.
  • the MBMS registration response message sent by the MME is sent to the SGSN when receiving the MBMS registration response message sent by the BM-SC or the MBMS bearer context on the GGSN;
  • the BM-SC is configured to receive an MBMS registration request message sent by the GGSN, and send an MBMS registration response message to the GGSN.
  • the RNC is configured to send an MBMS registration request message to the SGSN when it detects that the UE whose control is to use the MBMS service, and to receive the MBMS registration response message sent to the SGSN.
  • the present invention is directed to a multicast service, and adds tunnel identification information such as a GSN address and a TEID to a registration message to complete establishment of a GTP-C tunnel between two GSNs.
  • the MBMS registration process in this embodiment is that when a user needs to access a certain MBMS session-based service, but the network side has not established the session-related information, the network element on the network side completes the establishment of the session-related information through the registration process.
  • the registration process is shown in Figure 3 and includes the following steps: Step 301: When the RNC detects that the UE to be controlled uses the MBMS service, the RNC sends an MBMS Registration Request message to the SGSN to which the RNC belongs. Step 302: The SGS receives the registration about the MBMS bearer service from the RNC. After requesting the message, it is determined whether there is an MBMS bearer context for the MBMS bearer service, and if yes, step 306 (b) is performed.
  • the SGSN creates an MBMS bearer context (set in the "Standby" state.
  • the MBMS registration request message is sent to the GGSN, where the message carries the IP multicast address, the APN, and the tunnel identifier information of the SGSN.
  • the tunnel identifier information of the SGSN includes the TEID-C of the SGSN. IP address of the control plane of the SGSN;
  • the MBMS bearer service If there is no MBMS bearer context for the MBMS bearer service on the SGSN, it is possible that for the MBMS bearer service, the first MBMS UE context has been created on the SGSN, or the MBMS registration request message sent by the RC to the RCSN is received. After that, there is no corresponding MBMS 7 context on the SGSN.
  • the MBMS bearer context is required for one MBMS service.
  • One MBMS UE context is necessary for one user to join an MBMS service.
  • SGSN In addition to the RNC can send MBMS registration request messages, other network elements, such as SGSN and GGSN, are also available. If the SGSN detects that the UE it controls is to use the MBMS service, when it prepares to issue the MBMS registration request, if there is no MBMS bearer context for the MBMS bearer service, it sends an MBMS registration request message to the GGSN to which it belongs.
  • Step 303 After receiving the registration request message about the MBMS bearer service from the SGSN, the GGSN saves the tunnel identifier information of the SGSN, and determines whether there is an MBMS bearer context for the MBMS bearer service on the GGSN. If yes, step 305 is performed. If not, the GGSN creates an MBMS bearer context (in the "Standby" state) and sends an MBMS registration request message (carrying the IP multicast address, APN) to the BM-SC;
  • APN IP multicast address
  • the MBMS bearer context is created on the GGSN, or the MBMS registration request message sent by the SGSN is received, Not yet on the GGSN There is a corresponding MBMS bearer context.
  • Step 304 After receiving the MBMS registration request message from the GGSN, the BM-SC returns an MBMS registration response message to the GGSN, where the message carries the TMGI and the required MBMS bearer capability; if the MBMS bearer context is "Active" at this time. Status, the BM-SC initiates a session start process to the GGSN.
  • the GGSN After receiving the MBMS registration response message returned by the BM-SC, the GGSN performs the next step; Step 305, the GGSN saves the control plane IP address or the control plane IP address of the SGSN in the "list of downstream nodes" parameter in the MBMS bearer context.
  • the TEID-C returns an MBMS registration response message to the SGSN, where the message carries the TMGI, the required MBMS bearer capability, and the tunnel identification information of the GGSN.
  • the control plane IP address of the SGSN and the control plane IP address of the TEID-C or SGSN can be saved in the "list of downstream nodes" parameter in the MBMS bearer context, or it can be saved as a new information item. If stored as a new information item, the information item will exist as a list (list) to correspond to multiple SGSNs (each GGSN may correspond to TEID-C and control plane IP addresses of one or more SGSNs).
  • the GGSN initiates a session start procedure to the SGSN.
  • Step 306 (a) after receiving the MBMS registration response message returned by the GGSN, the SGSN saves the tunnel identification information of the GGSN;
  • the SGSN adds the identity of the RNC to the "list of downstream nodes" parameter in the MBMS bearer context of the SGSN.
  • the SGSN returns an MBMS Registration Response message (with TMGI, required MBMS bearer capability) to the RNC.
  • the SGSN initiates a session start process to the RNC.
  • the present invention is directed to a multicast service, and adds a GSN address and a TEID to the registration message.
  • the track identification information completes the establishment of the GTP-C tunnel between the two GSNs.
  • the information may be used as the content of the node identifier in the downlink node list, and such parameter information may be additionally added in the existing MBMS bearer context.
  • this tunnel can be used for all subsequent Session Start processes for this MBMS service. Make the MBMS service registration and session process more reasonable, and reduce the load on the network.

Landscapes

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

Abstract

The network for creating the control plane tunnel in the multicast service of the mobile communicating system, includes SGSN, GGSN and BM-SC. The method for creating the control plane tunnel is: a, when the SGSN receives or is ready to send the MBMS registration request, and if there is not MBMS bearer context in it, then creates it and sends the request to the GGSN, carrying the SGSN tunneling ID information; b, after it receives said request, the GGSN saves the SGSN tunneling ID information, and determines whether there is MBMS bearer context in it, if there is, then executes c, or else creates it and sends the MBMS registration request tothe BM-SC, waiting until the BM-SC returns the registration response, then executes c; c, the GGSN saves the SGSN tunneling ID information in the MBMS bearer context, and returns the MBMS registration response back to the SGSN, carrying the GGSN tunneling ID information; d, after it receives said response, the SGSN saves the GGSN tunneling ID information.

Description

移动通信***组播业务中建立控制面隧道的方法和网络  Method and network for establishing control plane tunnel in mobile communication system multicast service
技术领域 Technical field
本发明涉及移动通信***广播组播业务 (MBMS), 尤其涉及移动通信系 统组播业务中建立 GPRS隧道协议控制面隧道的方法和网络。  The present invention relates to a mobile communication system broadcast multicast service (MBMS), and more particularly to a method and network for establishing a GPRS tunnel protocol control plane tunnel in a mobile communication system multicast service.
背景技术 Background technique
先对本文中主要涉及的缩写进行定义。  First define the abbreviations mainly involved in this article.
MBMS(Multimedia Broadcast/Multicast Service) , 多媒体广播组播业务； GTP(GPRS Tunneling Protocol), GPRS ( General Packet Radio Service, 通用无线分组业务) 隧道协议；  MBMS (Multimedia Broadcast/Multicast Service), multimedia broadcast multicast service; GTP (GPRS Tunneling Protocol), GPRS (General Packet Radio Service) tunneling protocol;
GTP-C(GPRS Tunneling Protocol for Control Plane), GPRS隧道协议控制 面；  GTP-C (GPRS Tunneling Protocol for Control Plane), GPRS tunneling protocol control plane;
GSN ( GPRS Supporting Node ) , GPRS支持节点；  GSN (GPRS Supporting Node), GPRS support node;
SGSN(Service GSN), 服务 GPRS支持节点， 是核心网侧负责移动性管 理的网元；  SGSN (Service GSN), a service GPRS support node, is a network element responsible for mobility management at the core network side;
GGSN(Gateway GSN) , 网关 GPRS支持节点，是核心网侧负责接入到和 发送出核心网的网元；  GGSN (Gateway GSN), the gateway GPRS support node, is the network element that the core network side is responsible for accessing and sending out of the core network;
TEID, 隧道端点标识， 在一个网元里标识一个隧道， SGSN与 GGSN 间的 GTP隧道通过 TEID标识；  The TEID, the tunnel endpoint identifier, identifies a tunnel in a network element, and the GTP tunnel between the SGSN and the GGSN is identified by the TEID.
TEID-C, 用于控制面的隧道标识。  TEID-C, used to control the tunnel identifier of the surface.
为了有效地利用移动网络资源，现有移动通信***提出了使用广播组播 传输业务的思想， 即 MBMS。 MBMS在移动网络中提供一个数据源向多个 用户发送数据的点到多点业务，实现网络资源共享，提高网络资源的利用率， 尤其是空口接口资源。 MBMS提供两种方式： 广播方式和组播方式。 MBMS 不仅能实现纯文本低速率的消息类组播和广播，而且还能实现高速多媒体业 务的组播和广播， 组播和广播业务 MBMS基于 WCDMA/GSM分组网， 通 过增加一些新的功能实体， 如广播组播业务中心 BM-SC, 对已有的分组域 功能实体如 SGSN (分组服务节点） 、 GGSN (分组网关节点） 、 RAN (无 线接入网絡）和 UE (甩户终端）增加 MBMS功能， 并定义了新的逻辑共享 信道来实现空口资源共享。 移动通信***下使用 MBMS的网络架构如图 1 所示。 图中除了 BM-SC以外， 其余都是移动通信***的承载网元， 用于完 成数据传输功能。 GGS 与 BM-SC之间的信令交换在 Gmb参考点进行， 实 现 MBMS的控制面， 包括以下信令： In order to effectively utilize mobile network resources, existing mobile communication systems have proposed the idea of using broadcast multicast transmission services, namely MBMS. MBMS provides a point-to-multipoint service in which data sources send data to multiple users in a mobile network, realizes network resource sharing, and improves utilization of network resources, especially air interface resources. MBMS provides two methods: broadcast mode and multicast mode. MBMS can not only realize plain text low-rate message class multicast and broadcast, but also realize high-speed multimedia service multicast and broadcast. Multicast and broadcast services MBMS is based on WCDMA/GSM packet network. Add some new functional entities, such as the broadcast multicast service center BM-SC, to existing packet domain functional entities such as SGSN (Packet Service Node), GGSN (Packet Gateway Node), RAN (Radio Access Network) and UE (Set-up terminal) Increases the MBMS function and defines a new logical shared channel to implement air interface resource sharing. The network architecture using MBMS under the mobile communication system is shown in Figure 1. In addition to the BM-SC, the rest are the bearer network elements of the mobile communication system, which are used to complete the data transmission function. The signaling exchange between the GGS and the BM-SC is performed at the Gmb reference point to implement the control plane of the MBMS, including the following signaling:
- GGSN建立 MBMS的承载上下文并在 BM-SC注册；  - The GGSN establishes the bearer context of the MBMS and registers with the BM-SC;
- GGSN或者 BM-SC释放 MBMS承载上下文， GGSN在 BM-SC去注册； -BM-SC向 GGSN通知会话开始和结束。  - The GGSN or BM-SC releases the MBMS bearer context, the GGSN registers with the BM-SC; - The BM-SC informs the GGSN of the start and end of the session.
实现接入 MBMS业务， 需要一系列的步骤和信令交互， 至少包括业务 通知、 用户加入广播或组播组（包括激活、 注册等）的接入步骤， 以及离开 (包括去活、 注销等） 的步骤。  To implement access to the MBMS service, a series of steps and signaling interactions are required, including at least service notification, access procedures for users joining broadcast or multicast groups (including activation, registration, etc.), and leaving (including deactivation, logout, etc.) A step of.
为了完成 MBMS信令和 MBMS业务数据传输的处理， 现有 MBMS机 制对已有的分组域核心网功能实体 SGSN和 GGSN, 增加了 MBMS Bearer Context ( MBMS承载上下文） 用于记录某一个业务的相关信息。 在 GGSN 和 BM-SC的 MBMS承载上下文中， 包含了 IP组播地址、 APN( Access Point Name, 接入点名称）、 TMGI ( Temporary Mobile Group Identities, 临时移动 组标识）以及下行节点列表（list of downstream nodes )等信息。 下行节点列 表罗列了下行数据所要到达的下一个网络节点的地址信息。 BM-SC 的下行 节点列表即要接收该业务的所有 GGSN的地址信息。 这里的地址信息可以 是一种能够使下行数据到达的网络节点标识或 IP地址等， 但是目前尚未定 义下行节点列表中的 ID的具体的内容和格式。  In order to complete the processing of MBMS signaling and MBMS service data transmission, the existing MBMS mechanism adds an MBMS Bearer Context (MBMS Bearer Context) to the existing packet domain core network function entities SGSN and GGSN to record information about a certain service. . In the MBMS bearer context of the GGSN and the BM-SC, the IP multicast address, the APN (Access Point Name), the TMGI (Temporary Mobile Group Identities), and the downlink node list (list of Downstream nodes ) and other information. The downlink node list lists the address information of the next network node to which the downlink data is to be reached. The downlink node list of the BM-SC is to receive the address information of all GGSNs of the service. The address information here may be a network node identifier or an IP address or the like that enables the downlink data to arrive, but the specific content and format of the ID in the downlink node list have not yet been defined.
组播业务中 MBMS承载上下文的建立是通过注册消息完成的， 可以发 送 MBMS注册请求消息的网元包括 R C(无线网络控制器）、 SGSN、 GGSN。 注册过程如图 2所示。 SGSN向 GGSN发起的注册过程中， 注册消息是通过 GTP协议封装的。在注册请求和响应消息中，没有能够标识 GSN(这是 SGSN 和 GGSN的统称） 节点信息的参数， 这样， 接收注册请求的网元可能要从 IP包的报头里的源地址获取这次响应消息的目标地址。从协议层的处理逻辑 上不合理。 The establishment of the MBMS bearer context in the multicast service is completed by using the registration message. The network element that can send the MBMS registration request message includes the RC (Radio Network Controller), the SGSN, and the GGSN. The registration process is shown in Figure 2. During the registration process initiated by the SGSN to the GGSN, the registration message is encapsulated by the GTP protocol. In the registration request and response message, there is no parameter that can identify the GSN (this is the collective name of the SGSN and the GGSN), so that the network element receiving the registration request may obtain the response message from the source address in the header of the IP packet. Destination address. Processing logic from the protocol layer Unreasonable.
两个 GSN网元之间为完成会话的管理， 通过 GTP封装信令， 同时建立 GTP-C的隧道，具体的实现方式是在两个网元之间的信令消息中带上 GTP-C 的信息， 包括网元地址和 TEID等。 现有技术定义了在 Session Start (会话 开始） 流程中完成该隧道的建立， 即在流程消息中包含 GSN地址和 TEID 参数。 但是在标识该会话的 MBMS 承载上下文中， 没有保存 GSN地址信 息， i£辑上不合理， 同时如果对一个 MBMS业务， 中间有多次 Session Start 过程， 则增加了网络的负荷。  The GTP-C tunnel is established between the two network elements in the GTP-C. The specific implementation is to bring the GTP-C in the signaling message between the two NEs. Information, including network element address and TEID. The prior art defines the establishment of the tunnel in the Session Start process, that is, the GSN address and the TEID parameter are included in the process message. However, in the MBMS bearer context that identifies the session, the GSN address information is not saved, and it is unreasonable. If there is multiple Session Start processes in the middle of an MBMS service, the network load is increased.
综上所述， 现有技术存在的问题是：  In summary, the problems existing in the prior art are:
-虽然声明了下行节点列表中的节点标识， 却没有明确定义该标识的内 容；  - although the node identifier in the downstream node list is declared, the content of the identifier is not explicitly defined;
-虽然定义了组播业务在注册流程中获取该节点标识， 但注册相关消息 的参数中却没有参数信息表示该标识；  - Although the multicast service is defined to obtain the node identifier in the registration process, there is no parameter information indicating the identifier in the parameters of the registration related message;
-如果把 GSN地址或者 GSN地址和 TEID这样的信息作为这个节点标识 的格式， 这样的信息已经定义了在注册之后的 Session Start来完成， 而不是 在注册流程中获取；  - If the GSN address or the GSN address and the TEID are used as the format of the node identifier, such information has been defined by the Session Start after registration, rather than being acquired in the registration process;
-现有 Session Start消息虽然有 GSN地址以及 TEID这样的参数， 但 MBMS承载上下文里面却没有 GSN地址这样的参数信息。 发明内容  - The existing Session Start message has parameters such as GSN address and TEID, but there is no parameter information such as GSN address in the MBMS bearer context. Summary of the invention
本发明所要解决的技术问题是提供一种移动通信***广播组播业务中 建立控制面隧道的方法和网络， 克服现有技术中存在的问题， 使 MBMS业 务的注册和会话流程更为合理， 同时减轻网络负荷。 本发明采用的技术方案是：  The technical problem to be solved by the present invention is to provide a method and a network for establishing a control plane tunnel in a broadcast multicast service of a mobile communication system, to overcome the problems existing in the prior art, and to make the registration and session process of the MBMS service more reasonable, and at the same time Reduce network load. The technical solution adopted by the invention is:
本发明提供了一种移动通信***组播业务中建立控制面隧道的方法，该 控制面隧道的建立是在注册流程中进行的， 包括以下步骤：  The present invention provides a method for establishing a control plane tunnel in a multicast service of a mobile communication system. The establishment of the control plane tunnel is performed in a registration process, and includes the following steps:
( a )服务 GPRS支持节点 SGSN收到或准备发出多媒体广播组播业务 MBMS注册请求消息时， 若 SGSN判断其上没有 MBMS承载上下文， 则创 建 MBMS承载上下文，并向网关 GPRS支持节点 GGSN发送 MBMS注册请 求消息 , 在消息中携带 SGSN的隧道标识信息； (a) when the serving GPRS support node SGSN receives or prepares to issue a multimedia broadcast multicast service MBMS registration request message, if the SGSN determines that there is no MBMS bearer context, Establish an MBMS bearer context, and send an MBMS registration request message to the gateway GPRS support node GGSN, where the message carries the tunnel identifier information of the SGSN;
( b )GGSN收到 MBMS注册请求消息后，保存 SGS 的隧道标识信息， 判断其上是否有 MBMS承载上下文， 如果有， 执行步驟（c ) ； 如果没有， 则创建 MBMS承载上下文， 并向广播组播业务中心 BM-SC发送 MBMS注 册请求消息， 待 BM-SC返回 MBMS注册响应消息后， 执行步骤（c ) ； (b) After receiving the MBMS registration request message, the GGSN saves the tunnel identification information of the SGS, and determines whether there is an MBMS bearer context. If yes, perform step (c); if not, create an MBMS bearer context, and send the MBMS bearer context to the broadcast group. The broadcast service center BM-SC sends an MBMS registration request message, and after the BM-SC returns an MBMS registration response message, step (c) is performed;
( c ) GGSN在 MBMS承载上下文中保存 SGSN的隧道标识信息， 并向 SGSN返回 MBMS注册响应消息， 消息中携带 GGSN的隧道标识信息；(c) The GGSN stores the tunnel identification information of the SGSN in the MBMS bearer context, and returns an MBMS registration response message to the SGSN, where the message carries the tunnel identification information of the GGSN;
( d )SGSN收到 MBMS注册响应消息后，保存 GGSN的隧道标识信息。 进一步地， SGSN的隧道标识信息包括 SGSN的用于控制面的隧道标 识 TEID-C和 SGSN的控制面 IP地址， GGSN的隧道标识信息包括 GGSN 的 TEID-C和 GGSN控制面 IP地址。 (d) After receiving the MBMS registration response message, the SGSN saves the tunnel identification information of the GGSN. Further, the tunnel identifier information of the SGSN includes the tunnel identifier TEID-C of the SGSN and the control plane IP address of the SGSN, and the tunnel identifier information of the GGSN includes the TEID-C of the GGSN and the IP address of the GGSN control plane.
进一步地， 在步骤（ c )中， GGSN在 MBMS承载上下文中保存 SGSN 的隧道标识信息是在 MBMS承载上下文中保存 SGSN的控制面 IP地址或者 保存 SGSN的控制面 IP地址和 TEID-C。  Further, in step (c), the GGSN saves the tunnel identity information of the SGSN in the MBMS bearer context by storing the control plane IP address of the SGSN or the control plane IP address and TEID-C of the SGSN in the MBMS bearer context.
进一步地， 隧道标识信息保存在 MBMS承载上下文中的下行节点列表 参数中。  Further, the tunnel identity information is stored in a downlink node list parameter in the MBMS bearer context.
进一步地， 在步骤（a ) 中， SGSN创建 MBMS承载上下文后， 向其中 加入 IP组播地址和接入点名称 APN, 在 SGSN发送给 GGSN的 MBMS注 册请求消息中还携带有 IP组播地址和 APN。  Further, in step (a), after the SGSN creates the MBMS bearer context, the SGSN adds an IP multicast address and an access point name APN, and the MBMS registration request message sent by the SGSN to the GGSN further carries an IP multicast address and APN.
进一步地， 在步骤（b ) 中， BM-SC收到 MBMS注册请求消息后， 将 GGSN的隧道标识信息添加到 MBMS承载上下文中，并向 GGSN返回 MBMS 注册响应消息， 消息中携带有临时移动组标识及要求的 MBMS 载能力。  Further, in step (b), after receiving the MBMS registration request message, the BM-SC adds the tunnel identification information of the GGSN to the MBMS bearer context, and returns an MBMS registration response message to the GGSN, where the message carries the temporary mobility group. Identification and required MBMS capacity.
进一步地， 在步骤（a )之前， 还包括： 无线网格控制器 RNC向其所属 的 SGSN发送 MBMS注册请求； 在步骤（d )之后，还包括步骤（e ) : SGSN 将 R C的标识添加到 MBMS承载上下文中，并向 R C返回 MBMS注册响 应消息。  Further, before step (a), the method further includes: the wireless mesh controller RNC sending an MBMS registration request to the SGSN to which it belongs; after the step (d), further comprising the step (e): the SGSN adds the identifier of the RC to The MBMS bears the context and returns an MBMS registration response message to the RC.
进一步地， 在步骤（ a ) 中， 若 SGSN收到 RNC的 MBMS注册请求并 且 SGSN上有 MBMS承载上下文时， 直接执行步骤（e ) 。 Further, in step (a), if the SGSN receives the MBMS registration request of the RNC and When there is an MBMS bearer context on the SGSN, step (e) is directly executed.
进一步地， 在步骤（b ) 、 （c ) 、 （d ) 中， 网元在返回 MBMS注册响 应消息后， 如杲此时 MBMS承载上下文是活动状态， 则网元发起会话开始 流程。  Further, in steps (b), (c), and (d), after the network element returns the MBMS registration response message, if the MBMS bearer context is active at this time, the network element initiates a session start procedure.
本发明还提供了一种移动通信***组播业务中建立控制面隧道的网络， 包括服务 GPRS支持节点 SGSN、 网关 GPRS支持节点 GGSN、 广播组播业 务中心 BM-SC, 其特征在于：  The invention also provides a network for establishing a control plane tunnel in a multicast service of a mobile communication system, comprising a service GPRS support node SGSN, a gateway GPRS support node GGSN, and a broadcast multicast service center BM-SC, wherein:
SGSN用于当其上没有 MBMS承载上下文时， 创建 MBMS承载上下文 并向 GGSN发送带有 SGSN隧道标识信息的 MBMS注册请求消息， 且用于 接收 GGSN向其发送的带有 GGSN隧道标识信息的 MBMS注册响应消息； The SGSN is configured to: when there is no MBMS bearer context, create an MBMS bearer context and send an MBMS registration request message with SGSN tunnel identity information to the GGSN, and receive the MBMS registration with the GGSN tunnel identity information sent by the GGSN to the GGSN. Response message
GGSN用于接收 SGSN向其发送的带有 SGSN隧道标识信息的 MBMS 注册请求消息； 当 GGSN上没有 MBMS承载上下文时， GGSN用于向所述 BM-SC发送所述 MBMS 注册请求消息， 并用于接收 BM-SC 向其返回的 MBMS注册响应消息； 还用于在接收到 BM-SC向其发送的 MBMS注册响 应消息或 GGSN上有 MBMS承载上下文时，向 SGSN发送所述 MBMS注册 响应消息； _ The GGSN is configured to receive an MBMS registration request message with the SGSN tunnel identification information sent by the SGSN; when there is no MBMS bearer context on the GGSN, the GGSN is configured to send the MBMS registration request message to the BM-SC, and is used for receiving The MBMS registration response message returned by the BM-SC to the SGSN is also used to send the MBMS registration response message to the SGSN when receiving the MBMS registration response message sent by the BM-SC or the MBMS bearer context on the GGSN;
BM-SC用于接收 GGSN向其发送的 MBMS注册请求消息，并向 GGSN 发送所述 MBMS注册响应消息。  The BM-SC is configured to receive an MBMS registration request message sent by the GGSN, and send the MBMS registration response message to the GGSN.
进一步地， 还包括一无线网絡控制器 RNC, 当 RNC检测到其控制的 UE要使用 MBMS业务时， R C用于向 SGSN发送 MBMS注册请求消息， 并用于接收 SGSN向其发送的 MBMS注册响应消息； SGSN还用于接收 RNC 向其发送的 MBMS注册请求消息， 并向 R C发送 MBMS注册响应消息。  Further, a radio network controller RNC is further included. When the RNC detects that the UE it controls is to use the MBMS service, the RC is used to send an MBMS registration request message to the SGSN, and is used to receive an MBMS registration response message sent by the SGSN to the SGSN. The SGSN is further configured to receive an MBMS registration request message sent by the RNC, and send an MBMS registration response message to the RC.
进一步地， SGSN 隧道标识信息包括 SGSN 的用于控制面的隧道标识 TEID-C和 SGSN的控制面 IP地址， GGSN的隧道标识信息包括 GGSN的 TEID-C和 GGSN控制面 IP地址。 附图概述  Further, the SGSN tunnel identification information includes the tunnel identifier TEID-C of the SGSN and the control plane IP address of the SGSN, and the tunnel identifier information of the GGSN includes the TEID-C of the GGSN and the IP address of the GGSN control plane. BRIEF abstract
图 1是现有技术中移动通信***下使用 MBMS的网络架构图； 图 2是现有技术中 MBMS注册流程图； 1 is a network architecture diagram of using MBMS in a mobile communication system in the prior art; 2 is a flow chart of MBMS registration in the prior art;
图 3是本发明实施例中 MBMS注册流程图。 本发明的较佳实施方式  3 is a flow chart of MBMS registration in an embodiment of the present invention. Preferred embodiment of the invention
下面将结合附图及实施例对本发明的技术方案进行更详细的说明。  The technical solution of the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.
移动通信***组播业务中建立控制面隧道的网络， 包括 SGSN、 GGSN 和 BM-SC及 RNC。  A network for establishing a control plane tunnel in a mobile communication system multicast service, including an SGSN, a GGSN, and a BM-SC and an RNC.
SGSN用于当其上没有 MBMS承载上下文时，向 GGSN发送带有 SGSN 隧道标识信息（包括 SGSN的用于控制面的隧道标识 TEID-C和 SGSN的控 制面 IP地址）的 MBMS注册请求消息， 且用于接收 GGSN向其发送的带有 GGSN隧道标识信息（包括所述 GGSN的 TEID-C和 GGSN控制面 IP地址） 的 MBMS注册响应消息； SGSN还用于接收 R C向其发送的 MBMS注册 请求消息， 并向 R C发送 MBMS注册响应消息。  The SGSN is configured to send, to the GGSN, an MBMS registration request message with SGSN tunnel identification information (including the tunnel identifier TEID-C of the control plane and the control plane IP address of the SGSN of the SGSN) when there is no MBMS bearer context thereon, and For receiving an MBMS registration response message sent by the GGSN with GGSN tunnel identification information (including the TEID-C and GGSN control plane IP address of the GGSN); the SGSN is further configured to receive an MBMS registration request message sent by the RC to the MSCSN. And send an MBMS registration response message to the RC.
GGSN用于接收 SGSN向其发送的带有 SGSN隧道标识信息的 MBMS 注册请求消息；当 GGSN上没有 MBMS承载上下文时， GGSN用于向 BM-SC 发送 MBMS注册请求消息， 并用于接收 BM-SC向其发送的 MBMS注册响 应消息；还用于在接收到 BM-SC向其发送的 MBMS注册响应消息或 GGSN 上有 MBMS承载上下文时， 向 SGSN发送 MBMS注册响应消息；  The GGSN is configured to receive an MBMS registration request message with the SGSN tunnel identification information sent by the SGSN. When there is no MBMS bearer context on the GGSN, the GGSN is configured to send an MBMS registration request message to the BM-SC, and is used to receive the BM-SC direction. The MBMS registration response message sent by the MME is sent to the SGSN when receiving the MBMS registration response message sent by the BM-SC or the MBMS bearer context on the GGSN;
BM-SC用于接收 GGSN向其发送的 MBMS注册请求消息， 并向 GGSN 发送 MBMS注册响应消息。  The BM-SC is configured to receive an MBMS registration request message sent by the GGSN, and send an MBMS registration response message to the GGSN.
RNC用于当其检测到其控制的 UE要使用 MBMS业务时， 向 SGSN发 送 MBMS注册请求消息，并用于接收 SGSN向其发送的 MBMS注册响应消 息。  The RNC is configured to send an MBMS registration request message to the SGSN when it detects that the UE whose control is to use the MBMS service, and to receive the MBMS registration response message sent to the SGSN.
本发明针对组播业务， 在注册消息中增加 GSN地址和 TEID这样的隧 道标识信息， 完成在两个 GSN间的 GTP-C隧道的建立。  The present invention is directed to a multicast service, and adds tunnel identification information such as a GSN address and a TEID to a registration message to complete establishment of a GTP-C tunnel between two GSNs.
本实施例 MBMS注册流程为当有用户需要接入某个基于 MBMS会话的 业务， 但网絡侧还没有建立该会话相关的信息时， 网络侧的网元通过注册流 程完成该会话相关信息的建立。 注册流程如图 3所示， 包括以下步驟： 步骤 301 , 当 RNC检测到其控制的 UE要使用 MBMS业务时， RNC向 其所属的 SGSN发送 MBMS注册请求消息 (MBMS Registration Request); 步骤 302, SGS 收到来自 RNC的关于该 MBMS承载业务的注册请求 消息后， 判断其上是否有针对该 MBMS承载业务的 MBMS承载上下文， 如 果有， 则执行步驟 306 ( b ) , 如果没有， SGSN则创建一个 MBMS承载上 下文 (置于 "Standby" (准备）状态）， 向其中加入 IP组播地址、 APN后， 向 GGSN发送 MBMS注册请求消息， 消息中携带有 IP组播地址、 APN以及 SGSN的隧道标识信息， SGSN的隧道标识信息包括 SGSN的 TEID-C 和 SGSN的控制面 IP地址； The MBMS registration process in this embodiment is that when a user needs to access a certain MBMS session-based service, but the network side has not established the session-related information, the network element on the network side completes the establishment of the session-related information through the registration process. The registration process is shown in Figure 3 and includes the following steps: Step 301: When the RNC detects that the UE to be controlled uses the MBMS service, the RNC sends an MBMS Registration Request message to the SGSN to which the RNC belongs. Step 302: The SGS receives the registration about the MBMS bearer service from the RNC. After requesting the message, it is determined whether there is an MBMS bearer context for the MBMS bearer service, and if yes, step 306 (b) is performed. If not, the SGSN creates an MBMS bearer context (set in the "Standby" state. After the IP multicast address and the APN are added to the GGSN, the MBMS registration request message is sent to the GGSN, where the message carries the IP multicast address, the APN, and the tunnel identifier information of the SGSN. The tunnel identifier information of the SGSN includes the TEID-C of the SGSN. IP address of the control plane of the SGSN;
如果 SGSN上没有针对该 MBMS承载业务的 MBMS承载上下文，有可 能的情况是：针对该 MBMS承载业务，第一个 MBMS UE上下文已在 SGSN 上创建， 或者接收到 R C向其发送的 MBMS注册请求消息后， SGSN上还 没有相应的 MBMS 7 载上下文。  If there is no MBMS bearer context for the MBMS bearer service on the SGSN, it is possible that for the MBMS bearer service, the first MBMS UE context has been created on the SGSN, or the MBMS registration request message sent by the RC to the RCSN is received. After that, there is no corresponding MBMS 7 context on the SGSN.
MBMS承载上下文是针对一个 MBMS业务所必需的， 一个 MBMS UE 上下文是针对一个用户想加入一个 MBMS业务所必需的， 在一个网元中， 对于一个 MBMS业务， 只有一个 MBMS承载上下文， 但是可能没有或有一 个或者多个 MBMS UE上下文。  The MBMS bearer context is required for one MBMS service. One MBMS UE context is necessary for one user to join an MBMS service. In one network element, for one MBMS service, there is only one MBMS bearer context, but there may be no or There are one or more MBMS UE contexts.
除了 RNC可以发送 MBMS注册请求消息外， 其他网元， 如 SGSN和 GGSN也可以。 如果 SGSN检测到其控制的 UE要使用 MBMS业务， 在准 备发出 MBMS注册请求时， 其上没有针对该 MBMS承载业务的 MBMS承 载上下文， 则向其所属的 GGSN发送 MBMS注册请求消息。  In addition to the RNC can send MBMS registration request messages, other network elements, such as SGSN and GGSN, are also available. If the SGSN detects that the UE it controls is to use the MBMS service, when it prepares to issue the MBMS registration request, if there is no MBMS bearer context for the MBMS bearer service, it sends an MBMS registration request message to the GGSN to which it belongs.
步骤 303 , GGSN收到来自 SGSN的关于该 MBMS承载业务的注册请求 消息后，保存 SGSN的隧道标识信息，并判断 GGSN上是否有针对该 MBMS 承载业务的 MBMS承载上下文，如果有，则执行步骤 305,如果没有， GGSN 则创建一个 MBMS 承载上下文 (置于 "Standby"状态)后， 向 BM-SC 发送 MBMS注册请求消息 (携带 IP组播地址、 APN);  Step 303: After receiving the registration request message about the MBMS bearer service from the SGSN, the GGSN saves the tunnel identifier information of the SGSN, and determines whether there is an MBMS bearer context for the MBMS bearer service on the GGSN. If yes, step 305 is performed. If not, the GGSN creates an MBMS bearer context (in the "Standby" state) and sends an MBMS registration request message (carrying the IP multicast address, APN) to the BM-SC;
如果 GGSN上没有针对该 MBMS承载业务的 MBMS承载上下文，有可 能的情况是： 针对该 MBMS承载业务， 第一个 MBMS UE上下文在 GGSN 上创建， 或者收到 SGSN向其发送的 MBMS注册请求消息， GGSN上还没 有相应的 MBMS承载上下文。 If there is no MBMS bearer context for the MBMS bearer service on the GGSN, it is possible that: for the MBMS bearer service, the first MBMS UE context is created on the GGSN, or the MBMS registration request message sent by the SGSN is received, Not yet on the GGSN There is a corresponding MBMS bearer context.
步骤 304, BM-SC收到来自 GGSN的 MBMS注册请求消息后，向 GGSN 返回 MBMS注册响应消息，消息中携带有 TMGI、要求的 MBMS承载能力； 如果此时 MBMS承载上下文是 "Active" (活动）状态， BM-SC就向 GGSN 发起会话开始流程。  Step 304: After receiving the MBMS registration request message from the GGSN, the BM-SC returns an MBMS registration response message to the GGSN, where the message carries the TMGI and the required MBMS bearer capability; if the MBMS bearer context is "Active" at this time. Status, the BM-SC initiates a session start process to the GGSN.
GGSN收到 BM-SC返回的 MBMS注册响应消息后， 执行下一步骤； 步骤 305, GGSN在 MBMS承载上下文中的 "list of downstream nodes" 参数中保存 SGSN的控制面 IP地址或者控制面 IP地址和 TEID-C,并向 SGSN 返回 MBMS注册响应消息， 消息中携带 TMGI、 要求的 MBMS承载能力和 GGSN的隧道标识信息；  After receiving the MBMS registration response message returned by the BM-SC, the GGSN performs the next step; Step 305, the GGSN saves the control plane IP address or the control plane IP address of the SGSN in the "list of downstream nodes" parameter in the MBMS bearer context. The TEID-C returns an MBMS registration response message to the SGSN, where the message carries the TMGI, the required MBMS bearer capability, and the tunnel identification information of the GGSN.
SGSN的控制面 IP地址和 TEID-C或者 SGSN的控制面 IP地址可以保 存在 MBMS承载上下文中的 "list of downstream nodes" 参数中， 也可以另 外保存为新的信息项。 如果存为新的信息项， 该信息项将以列表（list ) 的 形式存在， 以分别对应多个 SGSN (每个 GGSN可能对应一个或多个 SGSN 的 TEID-C和控制面 IP地址） 。  The control plane IP address of the SGSN and the control plane IP address of the TEID-C or SGSN can be saved in the "list of downstream nodes" parameter in the MBMS bearer context, or it can be saved as a new information item. If stored as a new information item, the information item will exist as a list (list) to correspond to multiple SGSNs (each GGSN may correspond to TEID-C and control plane IP addresses of one or more SGSNs).
如果此时 MBMS承载上下文是 "Active"状态， GGSN就向 SGSN发起会 话开始流程。  If the MBMS bearer context is "Active" at this time, the GGSN initiates a session start procedure to the SGSN.
步骤 306, ( a ) SGSN收到 GGSN返回的 MBMS注册响应消息后， 保 存 GGSN的隧道标识信息；  Step 306, (a) after receiving the MBMS registration response message returned by the GGSN, the SGSN saves the tunnel identification information of the GGSN;
( b ) SGSN将 RNC的标识添加到 SGSN的 MBMS承载上下文中的" list of downstream nodes"参数中 ,  (b) The SGSN adds the identity of the RNC to the "list of downstream nodes" parameter in the MBMS bearer context of the SGSN.
( c ) SGSN向 RNC返回 MBMS 注册响应消息 (携带 TMGI, 要求的 MBMS承载能力）。  (c) The SGSN returns an MBMS Registration Response message (with TMGI, required MBMS bearer capability) to the RNC.
如果此时 MBMS承载上下文是 "Active"状态， SGSN就向 RNC发起会 话开始流程。  If the MBMS bearer context is "Active" at this time, the SGSN initiates a session start process to the RNC.
工业实用性 Industrial applicability
本发明针对组播业务， 在注册消息中增加 GSN地址和 TEID这样的隧 道标识信息， 完成在两个 GSN间的 GTP-C隧道的建立。 同时该信息可以作 为下行节点列表中的节点标识的内容， 也可以在现有 MBMS承载上下文里 面额外增加这样的参数信息。 该 GTP-C隧道在注册过程中建立后， 后续关 于这个 MBMS业务的所有的 Session Start (会话开始）过程都可以使用这条 隧道。使 MBMS业务的注册和会话流程更为合理， 同时减轻了网络的负荷。 The present invention is directed to a multicast service, and adds a GSN address and a TEID to the registration message. The track identification information completes the establishment of the GTP-C tunnel between the two GSNs. At the same time, the information may be used as the content of the node identifier in the downlink node list, and such parameter information may be additionally added in the existing MBMS bearer context. After the GTP-C tunnel is established during the registration process, this tunnel can be used for all subsequent Session Start processes for this MBMS service. Make the MBMS service registration and session process more reasonable, and reduce the load on the network.

Claims

权 利 要 求 书 Claim
1、 一种移动通信***组播业务中建立控制面隧道的方法， 其特征在 于， 所述控制面隧道的建立是在注册流程中进行的， 包括以下步骤： A method for establishing a control plane tunnel in a multicast service of a mobile communication system, characterized in that the establishment of the control plane tunnel is performed in a registration process, and includes the following steps:
( a )服务 GPRS支持节点 SGSN收到或准备发出多媒体广播组播业务 MBMS注册请求消息时， 若所述 SGSN判断其上没有 MBMS承载上下文， 则创建所述 MBMS承载上下文，并向网关 GPRS支持节点 GGSN发送 MBMS 注册请求消息， 在消息中携带所述 SGSN的隧道标识信息；  (a) when the serving GPRS support node SGSN receives or prepares to issue a multimedia broadcast multicast service MBMS registration request message, if the SGSN determines that there is no MBMS bearer context thereon, the MBMS bearer context is created, and the gateway GPRS support node is created. The GGSN sends an MBMS registration request message, where the message carries the tunnel identification information of the SGSN;
( b ) 所述 GGSN收到所述 MBMS注册请求消息后， 保存所述 SGSN 的隧道标识信息， 判断其上是否有所述 MBMS承载上下文， 如果有， 执行 步驟（c ) , 如果没有， 则创建所述 MBMS承载上下文， 并向广播组播业务 中心 BM-SC发送 MBMS注册请求消息，待所述 BM-SC返回 MBMS注册 应消息后， 执行步骤（ c ) ；  (b) after receiving the MBMS registration request message, the GGSN saves the tunnel identification information of the SGSN, and determines whether the MBMS bearer context is present, if yes, performs step (c), if not, creates The MBMS bears the context, and sends an MBMS registration request message to the broadcast multicast service center BM-SC. After the BM-SC returns the MBMS registration response message, step (c) is performed;
( c )所述 GGSN在所述 MBMS承载上下文中保存所述 SGSN的隧道标 识信息，并向所述 SGSN返回 MBMS注册响应消息，消息中携带所述 GGSN 的隧道标识信息；  (c) the GGSN saves the tunnel identification information of the SGSN in the MBMS bearer context, and returns an MBMS registration response message to the SGSN, where the message carries the tunnel identification information of the GGSN;
( d )所述 SGSN收到所述 MBMS注册响应消息后， 保存所述 GGSN 的隧道标识信息。  (d) After receiving the MBMS registration response message, the SGSN saves the tunnel identification information of the GGSN.
2、 如权利要求 1所述的方法， 其特征在于， 所述 SGSN的隧道标识信 息包括 SGSN的用于控制面的隧道标识 TEID-C和 SGSN的控制面 IP地址， 所述 GGSN的隧道标识信息包括所述 GGSN的 TEID-C和 GGSN控制面 IP 地址。  2. The method according to claim 1, wherein the tunnel identification information of the SGSN includes a tunnel identifier TEID-C of the SGSN and a control plane IP address of the SGSN, and the tunnel identifier information of the GGSN The TEID-C and GGSN control plane IP addresses of the GGSN are included.
3、 如权利要求 1或 2所述的方法， 其特征在于， 在所述步骤（c ) 中， 所述 GGSN在所述 MBMS承载上下文中保存所述 SGSN的隧道标识信息是 在 MBMS承载上下文中保存 SGS 的控制面 IP地址或者保存 SGSN的控制 面 IP地址和 TEID- (。  The method according to claim 1 or 2, wherein in the step (c), the GGSN saves the tunnel identification information of the SGSN in the MBMS bearer context in an MBMS bearer context. Save the SGS control plane IP address or save the SGSN's control plane IP address and TEID- (.
4、 如权利要求 1所述的方法， 其特征在于， 所述隧道标识信息保存在 所述 MBMS承载上下文中的下行节点列表参数中。  4. The method according to claim 1, wherein the tunnel identification information is stored in a downlink node list parameter in the MBMS bearer context.
5、 如权利要求 1 所述的方法， 其特征在于， 在所述步骤（a ) 中， 所 述 SGSN创建 MBMS承载上下文后，向其中加入 IP组播地址和接入点名称 APN, 在所述 SGSN发送给所述 GGSN的 MBMS注册请求消息中还携带有 所述 IP组播地址和 APN。 5. The method of claim 1 wherein in said step (a), After the SGSN creates the MBMS bearer context, the IP multicast address and the access point name APN are added to the SGSN, and the MBMS registration request message sent by the SGSN to the GGSN further carries the IP multicast address and the APN.
6、 如权利要求 1 所述的方法， 其特征在于， 在所述步骤（b ) 中， 所 述 BM-SC收到所述 MBMS注册请求消息后， 将所述 GGSN的隧道标识信 息添加到 MBMS承载上下文中， 并向所述 GGSN返回 MBMS注册响应消 息， 消息中携带有临时移动组标识及要求的 MBMS承载能力。  The method according to claim 1, wherein in the step (b), after receiving the MBMS registration request message, the BM-SC adds the tunnel identification information of the GGSN to the MBMS. In the bearer context, the MBMS registration response message is returned to the GGSN, where the message carries the temporary mobility group identifier and the required MBMS bearer capability.
7、 如权利要求 1 所述的方法， 其特征在于， 在所述步驟（a )之前， 还包括： 无线网络控制器 RNC向其所属的 SGSN发送 MBMS注册请求；在 所述步驟（d )之后， 还包括步骤（e ) ： SGSN将所述 RNC的标识添加到 MBMS承载上下文中， 并向所述 RNC返回 MBMS注册响应消息。  The method according to claim 1, wherein before the step (a), the method further comprises: the radio network controller RNC sending an MBMS registration request to the SGSN to which it belongs; after the step (d) The method further includes the step (e): the SGSN adds the identifier of the RNC to the MBMS bearer context, and returns an MBMS registration response message to the RNC.
8、 如权利要求 1或 7所述的方法，在步骤（a )中， 若 SGSN收到 RNC 的 MBMS注册请求并且 SGSN上有所述 MBMS承载上下文时，直接执行步 骤（e ) 。  8. The method according to claim 1 or 7, in step (a), if the SGSN receives the MBMS registration request of the RNC and the MBMS bearer context is on the SGSN, the step (e) is directly performed.
9、 如权利要求 1或 7所述的方法，其特征在于，在步骤（b )、 （c )、 9. The method of claim 1 or 7, wherein in steps (b), (c),
( d ) 中， 网元在返回所述 MBMS注册响应消息后， 如果此时 MBMS承载 上下文是活动状态， 则所述网元发起会话开始流程。 (d), after the network element returns the MBMS registration response message, if the MBMS bearer context is active at this time, the network element initiates a session start procedure.
10、 一种移动通信***组播业务中建立控制面隧道的网络， 包括服务 GPRS 支持节点 SGSN、 网关 GPRS 支持节点 GGSN、 广播組播业务中心 BM-SC, 其特征在于：  10. A network for establishing a control plane tunnel in a multicast service of a mobile communication system, comprising a service GPRS support node SGSN, a gateway GPRS support node GGSN, and a broadcast multicast service center BM-SC, wherein:
所述 SGSN用于当其上没有 MBMS承载上下文时，创建所述 MBMS承 载上下文并向所述 GGSN发送带有 SGSN隧道标识信息的 MBMS注册请求 消息，且用于接收所述 GGSN向其发送的带有 GGSN隧道标识信息的 MBMS 注册响应消息；  The SGSN is configured to: when the MBMS bearer context is not present, create the MBMS bearer context, and send an MBMS registration request message with SGSN tunnel identity information to the GGSN, and receive the band sent by the GGSN to the GGSN. An MBMS registration response message with GGSN tunnel identification information;
所述 GGSN用于接收所述 SGSN向其发送的带有 SGSN隧道标识信息 的 MBMS注册请求消息； 当所述 GGSN上没有 MBMS承载上下文时，所述 GGSN用于向所述 BM-SC发送所述 MBMS注册请求消息，并用于接收所述 BM-SC向其返回的 MBMS注册响应消息； 还用于在接收到所述 BM-SC向 其发送的 MBMS注册响应消息或 GGSN上有 MBMS承载上下文时，向所述 SGSN发送所述 MBMS注册响应消息； The GGSN is configured to receive an MBMS registration request message with the SGSN tunnel identification information sent by the SGSN; when the GGSN does not have an MBMS bearer context, the GGSN is configured to send the BMSN to the BM-SC. An MBMS registration request message, and configured to receive an MBMS registration response message returned by the BM-SC to the MBMS, and is further configured to receive the BM-SC direction When the MBMS registration response message is sent or the MBMS bearer context is on the GGSN, the MBMS registration response message is sent to the SGSN;
所述 BM-SC用于接收所述 GGSN向其发送的所述 MBMS注册请求消 息， 并向所述 GGSN发送所述 MBMS注册响应消息。  The BM-SC is configured to receive the MBMS registration request message sent by the GGSN, and send the MBMS registration response message to the GGSN.
11、 如权利要求 10所述的网络，其特征在于，还包括一无线网络控制 器 RNC,当所述 RNC检测到其控制的 UE要使用 MBMS业务时，所述 RNC 用于向所述 SGSN发送 MBMS注册请求消息， 并用于接收所述 SGSN向其 发送的 MBMS注册响应消息；所述 SGSN还用于接收所述 RNC向其发送的 所述 MBMS注册请求消息，并向所述 RNC发送所述 MBMS注册响应消息。  11. The network of claim 10, further comprising a radio network controller RNC, wherein when the RNC detects that the UE it controls is to use the MBMS service, the RNC is configured to send to the SGSN An MBMS registration request message, and configured to receive an MBMS registration response message sent by the SGSN, where the SGSN is further configured to receive the MBMS registration request message sent by the RNC, and send the MBMS to the RNC Registration response message.
12、 如权利要求 10所述的网络，其特征在于： 所述 SGSN隧道标识信 息包括 SGSN的用于控制面的隧道标识 TEID-C和 SGSN的控制面 IP地址， 所述 GGSN的隧道标识信息包括所述 GGSN的 TEID-C和 GGSN控制面 IP 地址。  The network according to claim 10, wherein: the SGSN tunnel identification information includes a tunnel identifier TEID-C of the SGSN and a control plane IP address of the SGSN, and the tunnel identifier information of the GGSN includes The TEID-C and GGSN control plane IP addresses of the GGSN.
PCT/CN2007/001616 2006-08-25 2007-05-17 A method and network for creating the control plane tunnel in the multicast service of the mobile communicating system WO2008025206A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2006101151451A CN100531137C (en) 2006-08-25 2006-08-25 Method for establishing control side tunnel in mobile communication system multicast service
CN200610115145.1 2006-08-25

Publications (1)

Publication Number Publication Date
WO2008025206A1 true WO2008025206A1 (en) 2008-03-06

Family

ID=38938019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001616 WO2008025206A1 (en) 2006-08-25 2007-05-17 A method and network for creating the control plane tunnel in the multicast service of the mobile communicating system

Country Status (2)

Country Link
CN (1) CN100531137C (en)
WO (1) WO2008025206A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112492634A (en) * 2020-12-10 2021-03-12 中盈优创资讯科技有限公司 Transmission PTN escape circuit implementation method and device based on mobile network

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101567843B (en) * 2008-04-25 2012-02-01 电信科学技术研究院 Method and device for deleting control plane tunnel
WO2011032316A1 (en) * 2009-09-18 2011-03-24 华为技术有限公司 Method, device and system for implementing registration
EP2861020B1 (en) * 2012-06-08 2017-04-05 Huawei Technologies Co., Ltd. Signalling plane of a target base station carried out by another base station
CN105491686B (en) * 2012-06-30 2019-05-28 华为技术有限公司 Data transmission method, network element device and communication system
KR20220122719A (en) * 2020-02-03 2022-09-02 엘지전자 주식회사 Method and apparatus for multicast transmission in which CP and UP are separated in a wireless communication system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1452342A (en) * 2002-04-19 2003-10-29 华为技术有限公司 Method for managing broadcast of multi-broadcast service source in mobile network
US20040040044A1 (en) * 2002-04-10 2004-02-26 Ahti Muhonen Method and apparatus for transmitting multimedia content from a network content element to a network data distribution element
WO2004034655A1 (en) * 2002-10-11 2004-04-22 Samsung Electronics Co., Ltd. A method of establishing and deleting mbms service in sgsn and ggsn
CN1859305A (en) * 2006-02-14 2006-11-08 华为技术有限公司 Method for establishing GTP tunnel in multimedia broadcast/multicast service

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040040044A1 (en) * 2002-04-10 2004-02-26 Ahti Muhonen Method and apparatus for transmitting multimedia content from a network content element to a network data distribution element
CN1452342A (en) * 2002-04-19 2003-10-29 华为技术有限公司 Method for managing broadcast of multi-broadcast service source in mobile network
WO2004034655A1 (en) * 2002-10-11 2004-04-22 Samsung Electronics Co., Ltd. A method of establishing and deleting mbms service in sgsn and ggsn
CN1859305A (en) * 2006-02-14 2006-11-08 华为技术有限公司 Method for establishing GTP tunnel in multimedia broadcast/multicast service

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112492634A (en) * 2020-12-10 2021-03-12 中盈优创资讯科技有限公司 Transmission PTN escape circuit implementation method and device based on mobile network

Also Published As

Publication number Publication date
CN100531137C (en) 2009-08-19
CN101087249A (en) 2007-12-12

Similar Documents

Publication Publication Date Title
US8107407B2 (en) EHSPA architecture
EP1440537B1 (en) Multicast support in packet switched wireless networks
US8656029B2 (en) Multicast session setup in networks by determining a multicast session parameter based on a pre-existing unicast session parameter
EP1796405B1 (en) Method and apparatus of service identifying and routing in multimedia broadcast/multicast service system
US8842593B2 (en) Method for activating multimedia broadcast/multicast service
JP4977721B2 (en) Provision of service data for interactive services (IMS, eg POC, conferencing) by using downlink multicast services (eg MBMS)
CN101340355B (en) Implementing method, system and apparatus for multimedia broadcast/multicast service
JP4422763B2 (en) How to start multimedia broadcast / multicast service
WO2005101737A1 (en) A method of starting the session of multimedia broadcast multicast service
WO2008098497A1 (en) System of multimedia broadcast multicast service and session start method, stop method
JP2006081173A (en) Deactivation method of multimedia broadcast multicast service and related device
EP2074842A1 (en) Efficient mbms backbone distribution using one tunnel approach
JP2006526352A (en) Apparatus and method for supporting mobility of a wireless terminal in a wireless communication network
JP3984994B2 (en) Context link scheme
WO2005069646A1 (en) A registering method for multimedia broadcast multicast service
WO2005107155A1 (en) Method to determine the number of all users in multimedia broadcast/multicast service(mbms) system
WO2003088570A9 (en) Method and system for setting up a multicast or broadcast transmission
WO2008025206A1 (en) A method and network for creating the control plane tunnel in the multicast service of the mobile communicating system
EP1821465B1 (en) A method for implementing the deactivation of the multimedia broadcast multicast service
JP2007251944A (en) Method and related apparatus for stopping point-to-multipoint mbms service
WO2009021418A1 (en) Method for multimedia broadcast multicast service access under long time evolution architecture
WO2004034655A1 (en) A method of establishing and deleting mbms service in sgsn and ggsn
WO2006015554A1 (en) A method of receiving multi-services at the same time
WO2008052420A1 (en) Method for establishing, re-establishing and deleting the radio access bearer of a selected service
WO2007093103A1 (en) Method and device for activating multimedia broadcast/multicast service

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07721189

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

122 Ep: pct application non-entry in european phase

Ref document number: 07721189

Country of ref document: EP

Kind code of ref document: A1