WO2009092256A1 - Ip多媒体子系统集中业务主席方会议业务的实现方法 - Google Patents

Ip多媒体子系统集中业务主席方会议业务的实现方法 Download PDF

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Publication number
WO2009092256A1
WO2009092256A1 PCT/CN2008/073661 CN2008073661W WO2009092256A1 WO 2009092256 A1 WO2009092256 A1 WO 2009092256A1 CN 2008073661 W CN2008073661 W CN 2008073661W WO 2009092256 A1 WO2009092256 A1 WO 2009092256A1
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Prior art keywords
emsc
conference
user equipment
service
conference server
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PCT/CN2008/073661
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English (en)
French (fr)
Inventor
Shilin You
Jiyan Cai
Zhendong Li
Zhenwu Hao
Original Assignee
Zte Corporation
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39548187&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009092256(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to EP08871331.8A priority Critical patent/EP2234452B2/en
Priority to US12/810,895 priority patent/US8339999B2/en
Priority to ES08871331.8T priority patent/ES2397801T5/es
Publication of WO2009092256A1 publication Critical patent/WO2009092256A1/zh

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Classifications

    • 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
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H04L65/4038—Arrangements for multi-party communication, e.g. for conferences with floor control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • 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
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for implementing a conference of a centralized conference of an IP multimedia subsystem centralized service.
  • IP Internet Protocol
  • IMS Multimedia Subsystem
  • 3GPP 3rd Generation Partnership Project
  • IMS IP-based telecommunications network architecture, and has nothing to do with access technology, except for GPRS (General Packet Radio Service), WLAN (Wireless Local Area Network), etc. (Packet Switching, PS)
  • the access network provides services, and it can also provide services for mobile cellular networks such as GSM (Global System for Mobile communications) and UMTS (Universal Mobile Telecommunications System).
  • GSM Global System for Mobile communications
  • UMTS Universal Mobile Telecommunications System
  • CS Circuit Switched
  • IMS IMS Centralized Service
  • FIG. 1 is a block diagram of the access of a non-ICS UE (a generic UE with ICS service) in an enhanced network of the IMS centralized control service, including the following network elements:
  • UE User Equipment
  • eMSC Enhanced Mobile Switch Center
  • MGW Media Gateway
  • CSCF Call Session Control Function
  • the conference server includes an application server (AS), a multimedia resource function controller (MRFC), and a multimedia resource function processor (MRFP).
  • AS application server
  • MRFC multimedia resource function controller
  • MRFP multimedia resource function processor
  • HSS Home Subscriber Server
  • the enhanced MSC server 102 is an enhancement of the circuit domain MSC server. In addition to completing the access and mobility management of the CS user equipment, it also acts as a Session Initiation Protocol (SIP) user agent to implement CS signaling and SIP signaling. Conversion, instead of user access to IMS.
  • SIP Session Initiation Protocol
  • the user equipment 101 accesses the enhanced MSC server 102 through the CS control signaling, and the enhanced MSC server 102 acts as a user agent, instead of the CS user equipment 101 accessing the IMS network, and establishing a session connection with the remote user, and the MGW 103 completes the CS bearer.
  • the conversion between the media stream and the media stream on the IP bearer establishes a media connection between the user device 101 and the remote user.
  • the session initiation protocol is enhanced between the enhanced MSC server 102 and the CSCF 104 in the IMS network, and the conference service is provided by the conference server 105 in the IMS network.
  • FIG. 2 is a flow chart of the IMS conference service.
  • UE-A establishes a call with UE-B.
  • UE-A maintains the session, and then UE-A establishes a session with UE-C and enters a call state.
  • UE-A decides to join these two sessions into the meeting, and performs the following steps:
  • UE-A creates a conference, and initiates a session request message to the conference server by using the saved conference server address, and the message arrives at the conference server through the CSCF;
  • the conference server sends a successful response to the UE-A through the CSCF, so that the bearer connection of the UE-A to the conference server is established;
  • the UE-A indicates that the UE-B joins the conference.
  • the UE-A indicates that the UE-C joins the conference, and the three-party conference call is successfully established.
  • the non-CS UE non-IMS centralized service user equipment
  • the conference service of the IMS centralized control service has not been implemented.
  • the eMSC simulates the IMS UE to perform the conference service instead of the non ICS UE
  • the conference server address cannot be known. Therefore, after the non-ICS UE is accessed as the chair, how to implement the conference service of the IMS centralized control service becomes an urgent problem to be solved.
  • the technical problem to be solved by the present invention is to provide a method for implementing the conference service of the centralized conference of the IP multimedia subsystem, which can meet the conference service of the IMS centralized control service when the non lCS UE is used as the chairman.
  • the present invention provides a method for implementing a conference service of a centralized conference of an IP multimedia subsystem.
  • a user equipment of a non-IP multimedia subsystem IMS centralized service subscribes to a conference service, and is in a call state with a plurality of user equipments.
  • the method for the user equipment to implement the conference service as the chair user equipment includes:
  • the chair user equipment initiates a conference establishment request to the enhanced mobile switching center server eMSC, and after receiving the request, the eMSC sends a conference service address to the conference server according to the conference server address to which the chairman user equipment belongs. Session request message;
  • the conference server replies with the success response information to the eMSC.
  • the eMSC invites the user equipment currently in the call with the user equipment of the chair to join the conference.
  • the conference device successfully sends a conference establishment success message to the user equipment. .
  • the implementation method of the present invention wherein the eMSC obtains the conference server address to which the chair user device belongs in the following manner:
  • the chairman user equipment initiates a location update request message of the circuit domain to the eMSC; the eMSC initiates a location update request message of the mobile application part to the home subscriber server HSS;
  • the HSS carries the conference server address to which the chairman user equipment belongs when the user data is inserted into the eMSC or in the location update success response sent back to the eMSC;
  • the eMSC saves the conference server address to which the chairman user equipment belongs, and returns a location update completion message to the conference user equipment.
  • the eMSC obtains the conference server address to which the chairman user equipment belongs in the following manner:
  • the chair user equipment initiates a location update request message of the circuit domain to the eMSC, and the location update of the mobile application part is completed between the eMSC and the HSS;
  • the eMSC initiates a registration request message to the home IMS network and indicates that the registration request is initiated in place of the chairman user equipment;
  • the call session control function CSCF initiates a registration interaction with the HSS, and returns the conference server address to which the host user equipment delivered by the HSS or locally configured belongs to the eMSC through a success response;
  • the eMSC saves the received conference server address, and sends a location update complete message to the chairman user equipment.
  • the eMSC obtains the conference server address to which the chairman user equipment belongs in the following manner:
  • the chair user equipment initiates a location update request message of the circuit domain to the eMSC, and the location update of the mobile application part is completed between the eMSC and the HSS;
  • the eMSC initiates a registration request message to the home IMS network, and indicates that the registration request is initiated by the user equipment of the chairperson, and after the registration is successfully completed, returning a location update completion message to the user equipment of the chairperson;
  • the eMSC returns a response to the CSCF after receiving the response, and saves the Conference server address.
  • the conference server address to which the CSCF is returned by the CSCF to the eMSC through the notification message is obtained from the HSS or locally configured.
  • the conference server address to which the chair user equipment belongs the chairman user equipment initiates a service request to the eMSC;
  • the eMSC according to the information of the service request or according to the saved letter of the user equipment of the chairman
  • the conference server address of the chairman user equipment is derived.
  • the eMSC needs to save the estimated conference server address to which the adjacency user equipment belongs.
  • the eMSC When the user equipment that is invited to join the conference is a multimedia subsystem user equipment, the eMSC directly instructs the user equipment to join the conference service, and the user equipment initiates a connection to the conference server, and the eMSC is released to the user equipment.
  • the bearer established before the establishment of the conference service.
  • the eMSC When the user equipment that is invited to join the conference is a normal mobile terminal or a fixed terminal, the eMSC indicates the conference server, and the conference server invites the gateway to which the user equipment belongs to replace the user equipment to join the conference, and the gateway initiates establishment to the conference. After the bearer of the server, the bearer established by the conference service and the bearer of the gateway to the user equipment are released, and the bearer established before the conference service between the gateway and the eMSC is established is released.
  • the present invention implements the conference service of the IMS centralized control service when the non lCS UE is used as the chair, and also solves the problem of how the eMSC obtains the conference server address of the non lCS UE of the conference conference service.
  • FIG. 1 is a schematic diagram of an enhanced network non lCS UE access architecture of an IMS centralized control service
  • FIG. 2 is a flow chart of an existing IMS UE implementing a conference service
  • FIG. 3 is a flowchart of implementing a conference service for implementing an IMS centralized control service when a non lCS UE is used as a chair; 4 is a flowchart of Embodiment 1 of an eMSC acquiring a conference server address according to an embodiment of the present invention;
  • FIG. 5 is a flow chart of Embodiment 2 of an eMSC acquiring a conference server address according to an embodiment of the present disclosure
  • FIG. 6 is a third flowchart of an embodiment of an eMSC acquiring a conference server address according to an embodiment of the present disclosure
  • FIG. 7 is a fourth flowchart of an implementation manner of an eMSC acquiring a conference server address according to an embodiment of the present invention. Preferred embodiment of the invention
  • a method for implementing a conference service for implementing an IMS centralized control service in an IMS centralized control service architecture enhanced by a non lCS UE access network when a non ICS UE subscribes to a conference service, and UE-A and UE-B
  • the UE-C is in the call state (the embodiment is the UE-A request to establish the conference service with the UE-B and the UE-C that is in the call)
  • the non-l CS UE that is, the UE-A is the chair user equipment
  • Step 301 The UE-A initiates a conference establishment request of the CS domain to the eMSC.
  • Step 302 After receiving the conference server address, the eMSC sends a session request to the conference server through the CSCF to create a conference service.
  • Step 303 The conference server sends a successful response to the eMSC through the CSCF, so that the bearer connection of the eMSC to the conference server is established;
  • Step 304 The eMSC determines that the UE-A is in a call state with the UE-B and the UE-C, and joins the UE-B to the conference according to the indication required by the UE-A.
  • the eMSC directly instructs the UE-B to invite the UE-B to join the conference service, and the UE-B initiates the establishment of the bearer to the conference server, and the eMSC releases the conference service between the eMSC and the UE-B.
  • the eMSC indicates the conference server, and the conference server invites the UE-B gateway to replace the UE-B to join the conference, and the gateway sends the conference.
  • the bearer After the bearer is established to the conference server, the bearer established by the conference service and the bearer of the gateway to the UE-B are released, and the bearer established before the conference service between the gateway and the eMSC is established is released.
  • Step 305 The eMSC joins the UE-C to the conference according to the indication required by the UE-A.
  • the process is the same as the eMSC joining the UE-B to the conference according to the indication required by the UE-A, and is not repeated.
  • Step 306 The eMSC sends a conference establishment success message to the UE-A.
  • the process in which the eMSC joins the UE-B or the UE-C to the conference may not be performed in the above order, that is, there is no fixed sequence.
  • the first embodiment of the method for obtaining the conference server address by the eMSC of the present invention is to obtain the conference server address in the location update response message, and the specific steps are as follows:
  • Step 401 The non ICS UE initiates a traditional location update request message to the eMSC, where the message is a mobility management (MM) message.
  • MM mobility management
  • Step 402 The eMSC sends a Mobile Application Part (MAP) location update request message to the HSS, where the message carries an ICS flag, and identifies the eMSC as an enhanced MSC instead of an ordinary MSC.
  • MAP Mobile Application Part
  • Step 403 The HSS inserts user data into the eMSC according to the user subscription information.
  • the HSS may carry the conference server address to which the non ICS UE belongs in the inserted user data request message.
  • Step 404 The HSS sends a location update success response message to the eMSC.
  • the location update success response message carries the conference server address to which the non ICS UE belongs.
  • Step 405 The eMSC carries the conference server address according to step 403 or step 404, and saves the conference server address for use by the conference service.
  • Step 406 The eMSC returns a location update complete message to the non ICS UE.
  • steps 405 and 406 may vary.
  • the second embodiment of the present invention is that the eMSC obtains the conference server address, and obtains the conference server address in the registration response message, and the specific steps are as follows:
  • Step 501 The non ICS UE initiates a traditional location update request message to the eMSC, where the message is an MM message.
  • Steps 502 - 504 the location update of the MAP is completed between the eMSC and the HSS;
  • Step 505 The eMSC initiates a registration message to the home IMS network by using the non-CS UE, and the message can identify that the eMSC initiates registration with the IMS network instead of the non ICS UE.
  • Step 506 the CSCF initiates a registration interaction with the HSS
  • the conference server address is sent to the CSCF.
  • Step 507 The CSCF sends a SIP success response message to the eMSC.
  • the CSCF may, according to the operation policy, select the conference server address to which the user is delivered by the HSS or the conference server address to which the locally configured user belongs, and carry the selected conference server address in the SIP success response message;
  • Step 508 The eMSC carries the conference server address according to step 507, and saves the conference server address for use by the conference service.
  • Step 509 The eMSC returns a location update complete message to the non ICS UE.
  • Step 508 and step 509 may be in no order.
  • the third embodiment of the method for obtaining the conference server address by the eMSC of the present invention is to obtain the conference server address by subscription, and the specific steps are as follows:
  • Step 606 The CSCF initiates a registration interaction with the HSS.
  • Step 607 The CSCF sends a SIP success response message to the eMSC.
  • Step 608 the eMSC returns a location update complete message to the non ICS UE.
  • Step 609 The eMSC sends a registration subscription message to the CSCF, indicating that the conference server address of the user is to be obtained.
  • Step 611 The CSCF sends a notification message to the eMSC, where the message carries the conference server address to which the user belongs (where the CSCF can also obtain the conference server address to which the user belongs from the HSS or use the conference server address to which the locally configured user belongs);
  • Step 612 the eMSC returns a success response message to the CSCF.
  • Step 613 The eMSC carries the conference server address according to step 610, and saves the conference server address for use by the conference service.
  • Step 608 and steps 609-613 may be in no order.
  • the fourth embodiment of the eMSC for obtaining the conference server address is calculated by the eMSC according to the information of the service request or the information stored by the eMSC.
  • the specific steps are as follows:
  • Step 701 The non ICS UE initiates a service request to the eMSC.
  • the business request here can be a location update, a call, or even a conference business itself.
  • Step 702 The eMSC calculates a conference server address of the non ICS UE according to the information of the service request or the information of the non ICS UE user saved by the eMSC.
  • the conference server address is conference.MCC.MNC.3GPP.org, where conference represents conference, 3GPP Representing a 3rd generation mobile partner, org represents an organization, so the eMSC can find the conference server address based on the derived conference server address of the non ICS UE.
  • MCC Mobile Country Code
  • MNC Mobile Network Number
  • Step 703 The eMSC saves the conference service address. If the user can calculate the conference server address when doing the conference service in step 701, this step may not be needed.
  • the present invention solves the problem of how the eMSC obtains the conference service address of the non ICS UE that subscribes to the conference service, and also implements the conference of the non-ICS UE as the chairman to implement the IMS centralized control service.

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

Description

IP多媒体子系统集中业务主席方会议业务的实现方法
技术领域
本发明涉及通信领域， 尤其涉及一种 IP多媒体子系统集中业务主席方会 议业务的实现方法。 背景技术
IP(网络互联协议， Internet Protocol,简称 IP )多媒体子系统（ IP Multimedia Core Network Subsystem,简称 IMS )是由第三代合作伙伴计划（ 3rd Generation Partnership Project, 简称 3GPP )提出的一种基于 IP的网络架构， 其构建了一 个开放而灵活的业务环境， 支持多媒体应用， 并为用户提供丰富的多媒体业 务。
IMS 是基于 IP 的电信网络架构， 与接入技术无关， 除了可以为 GPRS ( General Packet Radio Service, 通用分组无线业务 )、 WLAN ( Wireless Local Area Network, 无线局域网）等分组（Packet Switching, 简称 PS )接入网络 提供业务夕卜， 还可以为 GSM ( Global System for Mobile communications, 全球 移动通讯系统) 、 UMTS ( Universal Mobile Telecommunications System, 统一 移动通讯系统）等移动蜂窝网络提供业务。
GSM、 UMTS 等移动蜂窝网络釆用电路交换技术， 称为电路（Circuit Switched, 简称 CS )域， 能够为用户提供基本的语音业务， 以及基于语音业 务的补充业务。 当 CS域接入 IMS时， 其演变为一种接入方式， 业务完全由 IMS统一提供， 这种技术称为 IMS集中业务（ IMS Centralized Service, 简称 ICS ) 。
图 1是 IMS集中控制业务的增强网络下 non ICS UE (具有 ICS业务的普 通 UE )接入的架构图， 包括如下网元：
101 用户设备 ( User Equipment, UE )
102 增强移动交换中心服务器（Enhanced Mobile Switch Center, eMSC ) 103 媒体网关 （ Media Gateway, MGW ) 104 呼叫会话控制功能（Call Session Control Function, CSCF )
105 会议服务器， 其包含有应用服务器（Application Server, AS ) 、 多 媒体资源功能控制器（ Multimedia Resource Function Controller, MRFC )和多 媒体资源功能处理器（Multimedia Resource Function Processor, MRFP ) 。
106 归属用户服务器（Home Subscriber Server, 简称 HSS ) , 存储 CS域 和 IMS域的用户数据
增强 MSC服务器 102是电路域 MSC服务器的增强， 除了完成 CS用户 设备的接入和移动性管理以外， 还充当会话初始协议 （Session Initiation Protocol, SIP )用户代理，实现 CS信令和 SIP信令的转换，代替用户接入 IMS。
用户设备 101通过 CS控制信令接入到增强 MSC服务器 102,增强 MSC 服务器 102充当用户代理， 代替 CS用户设备 101接入 IMS网络， 并和远端 用户建立会话连接，同时 MGW103完成 CS承载上的媒体流和 IP承载上的媒 体流之间的转换，建立用户设备 101和远端用户之间媒体连接。其中增强 MSC 服务器 102和 IMS网络中的 CSCF 104之间釆用会话初始协议， 由 IMS网络 中的会议服务器 105提供会议方面业务。
如图 2是 IMS会议业务的流程图， UE-A与 UE-B建立通话， UE-A保持 了这个会话， 然后 UE-A建立与 UE-C的会话， 并进入通话态， 这时 UE-A作 为会议的主席方， 决定将这两个会话加入会议中来， 执行以下步骤：
201 , UE-A创建一个会议， 通过自己保存的会议服务器地址向会议服务 器发起会话请求消息， 所述消息经过 CSCF到达会议服务器；
202, 会议服务器经过 CSCF向 UE-A回送成功响应， 这样 UE-A到会议 服务器的承载连接就建立起来了；
203 , UE-A指示 UE-B加入会议；
204, UE-A指示 UE-C加入会议， 三方会议电话建立成功。
在图 1架构下， non lCS UE (非 IMS集中业务用户设备）接入， 还未实 现 IMS集中控制业务的会议业务。同时，如果 eMSC模拟 IMS UE代替 non ICS UE做会议业务， 也无法知道会议服务器地址。 因此 non ICS UE作为主席方 接入后， 如何实现 IMS集中控制业务的会议业务， 便成为亟待解决的问题。 发明内容
本发明所解决的技术问题在于提供一种 IP多媒体子系统集中业务主席方 会议业务的实现方法， 能够满足 non lCS UE作为主席方时， 实现 IMS集中控 制业务的会议业务。
为了实现上述目的， 本发明提供一种 IP多媒体子系统集中业务主席方会 议业务的实现方法，非 IP多媒体子系统 IMS集中业务的用户设备签约了会议 业务， 且与多个用户设备处于通话状态， 该用户设备作为主席方用户设备实 现会议业务的方法包括：
所述主席方用户设备向增强移动交换中心服务器 eMSC发起会议建立请 求， 所述 eMSC收到该请求后， 根据所述主席方用户设备所属的会议服务器 地址， 向所述会议服务器发送创建会议业务的会话请求消息；
所述会议服务器向所述 eMSC回复成功响应信息， 所述 eMSC收到后， 邀 请当前与所述主席方用户设备通话的用户设备加入会议， 成功后向所述主席 方用户设备回送会议建立成功消息。
本发明所述的实现方法，其中， 所述 eMSC按以下方式获得所述主席方用 户设备所属的会议服务器地址：
所述主席方用户设备向所述 eMSC发起电路域的位置更新请求消息； 所述 eMSC向归属用户服务器 HSS发起移动应用部分的位置更新请求消 息；
所述 HSS在向 eMSC插入用户数据时或在向 eMSC回送的位置更新成功响 应中携带所述主席方用户设备所属的会议服务器地址；
所述 eMSC保存所述主席方用户设备所属的会议服务器地址，并向所述主 席方用户设备返回位置更新完成消息。
进一步地，其中， 所述 eMSC按以下方式获得所述主席方用户设备所属的 会议服务器地址：
所述主席方用户设备向 eMSC发起电路域的位置更新请求消息， 所述 eMSC与 HSS之间完成移动应用部分的位置更新； 所述 eMSC向归属 IMS网络发起注册请求消息并指示该注册请求是代替 所述主席方用户设备发起的；
呼叫会话控制功能 CSCF与 HSS发起注册交互，并将 HSS下发的或者本 地配置的所述主席方用户设备所属的会议服务器地址通过成功响应回送给所 述 eMSC;
所述 eMSC保存收到的所述会议服务器地址， 向所述主席方用户设备回 送位置更新完成消息。
进一步地， 其中，
所述 eMSC按以下方式获得所述主席方用户设备所属的会议服务器地 址：
所述主席方用户设备向 eMSC发起电路域的位置更新请求消息， 所述 eMSC与 HSS之间完成移动应用部分的位置更新；
所述 eMSC向归属 IMS网络发起注册请求消息并指示该注册请求是代替 所述主席方用户设备发起的， 成功完成注册后， 向所述主席方用户设备返回 位置更新完成消息；
所述 eMSC向所述 CSCF发送注册订阅消息， 指示要获取所述用户的会议 服务器地址；
所述 CSCF向所述 eMSC返回成功响应消息以及带有所述主席方用户设备 所属的会议服务器地址的通知消息， 该 eMSC收到后返回给 CSCF成功响应， 并保存所述主席方用户设备所属的会议服务器地址。
进一步地， 其中，
所述 CSCF通过通知消息向所述 eMSC返回的所述主席方用户设备所属的 会议服务器地址是从 HSS获取的或者是本地配置的。
进一步地， 其中，
所述 eMSC按以下方式获得所述主席方用户设备所属的会议服务器地址： 所述主席方用户设备向所述 eMSC发起业务请求；
所述 eMSC根据业务请求的信息或根据保存的所述主席方用户设备的信 息推算出该主席方用户设备的会议服务器地址。
进一步地， 其中，
所述 eMSC是根据所述主席方用户设备的移动国家码 MCC、 移动网络号 信息 MNC、 会议标识、 网络标识和约定的组织标识中的一种或多种来推算出 所述主席方用户设备所属的会议服务器地址。
进一步地， 其中，
所述业务请求不是发起会议业务时， 所述 eMSC需要保存所推算出的主 席方用户设备所属的会议服务器地址。
进一步地， 其中，
所述被邀请加入会议的用户设备为多媒体子系统用户设备时，所述 eMSC 直接指示该用户设备加入会议业务， 该用户设备主动发起建立到会议服务器 的连接， 所述 eMSC释放到该用户设备之间的会议业务建立前建立的承载。
进一步地， 其中，
所述被邀请加入会议的用户设备为普通的移动终端或固定终端时， 所述 eMSC指示会议服务器， 由会议服务器邀请该用户设备所属网关来代替该用 户设备加入会议， 所述网关发起建立到会议服务器的承载后， 关联会议业务 建立的承载和所述网关到该用户设备的承载， 并释放所述网关到所述 eMSC 之间的会议业务建立前建立的承载。
与现有技术相比，本发明在 non lCS UE作为主席方时， 实现了 IMS集中 控制业务的会议业务，同时也解决了 eMSC怎么获取签约会议业务的 non lCS UE的会议服务器地址的问题。 附图概述
图 1为 IMS集中控制业务的增强网络 non lCS UE接入架构图； 图 2为现有的 IMS UE实现会议业务的流程图；
图 3为本发明实施例所述的 non lCS UE作为主席方时，实现 IMS集中控 制业务的会议业务的实施流程图； 图 4为本发明实施例所述的 eMSC获取会议服务器地址的实施方式一流 程图；
图 5为本发明实施例所述的 eMSC获取会议服务器地址的实施方式二流 程图；
图 6为本发明实施例所述的 eMSC获取会议服务器地址的实施方式三流 程图；
图 7为本发明实施例所述的 eMSC获取会议服务器地址的实施方式四流 程图。 本发明的较佳实施方式
以下对具体实施方式进行详细描述， 但不作为对本发明的限定。
如图 3所示，为 non lCS UE接入网络增强的 IMS集中控制业务架构下实 现 IMS集中控制业务的会议业务的实现方法，当 non ICS UE签约了会议业务， 且 UE-A与 UE-B、 UE-C处于通话状态时（实施例以 UE-A要求与正在通话 的 UE-B、 UE-C建立会议业务为例） ， 其中 non lCS UE, 即 UE-A作为主席 方用户设备， 其具体步骤为：
步骤 301 , UE-A向 eMSC发起一个 CS域的会议建立请求；
步骤 302, eMSC收到后，根据 UE-A所属的会议服务器地址，经过 CSCF 向会议服务器发送一个会话请求， 创建一个会议业务；
步骤 303 , 会议服务器经过 CSCF向 eMSC回送成功响应， 这样 eMSC 到会议服务器的承载连接就建立起来了；
步骤 304, eMSC判断 UE-A与 UE-B、 UE-C处于通话状态， 根据 UE-A 要求的指示将 UE-B加入会议；
这里如果 UE-B为 IMS UE, eMSC直接指示 UE-B,邀请 UE-B加入会议 业务， UE-B主动发起建立到会议服务器的承载， 并由 eMSC释放 eMSC到 UE-B之间的会议业务建立前建立的承载；
如果 UE-B为其他普通终端， 如移动终端， 固定终端等， eMSC指示会议 服务器， 由会议服务器邀请 UE-B所属网关来代替 UE-B加入会议， 该网关发 起建立到会议服务器的承载后， 关联会议业务建立的承载和网关到 UE-B 的 承载， 同时释放网关到 eMSC之间的会议业务建立前建立的承载。
步骤 305, eMSC根据 UE-A要求的指示将 UE-C加入会议；
该过程与 eMSC根据 UE-A要求的指示将 UE-B加入会议相同， 不再重 复。
步骤 306 , eMSC向 UE-A回送会议建立成功消息。
其中 eMSC将 UE-B或 UE-C加入会议的处理可以不按上述顺序进行，即 没有固定的先后顺序。
如图 4所示， 为本发明的 eMSC获取会议服务器地址的实施方式一， 是 在位置更新响应消息中获得会议服务器地址， 其具体步骤为：
步骤 401 , non ICS UE向 eMSC发起传统的位置更新请求消息， 该消息 为移动性管理（ Mobile Management, 简称 MM ) 消息；
步骤 402, eMSC向 HSS发起移动应用部分（ Mobile Application Part, 简 称 MAP ) 的位置更新请求消息， 该消息中携带 ICS flag, 标识 eMSC为增强 型 MSC, 而非普通的 MSC;
步骤 403 , HSS根据用户签约信息， 向 eMSC插入用户数据；
如果 non ICS UE签约了会议业务， HSS可以在插入用户数据请求消息携 带 non ICS UE所属的会议服务器地址。
步骤 404 , HSS向 eMSC回送位置更新成功响应消息；
如果步骤 403中未携带 non ICS UE所属的会议服务器地址， 则在位置更 新成功响应消息中携带 non ICS UE所属的会议服务器地址。
步骤 405, eMSC根据步骤 403或者步骤 404携带会议服务器地址，保存 会议服务器地址， 供会议业务使用。
步骤 406, eMSC向 non ICS UE回送位置更新完成消息。
其中步骤 405和步骤 406的先后顺序可以变化。 如图 5所示， 为本发明的 eMSC获取会议服务器地址的实施方式二， 是 在注册响应消息中获得会议服务器地址， 其具体步骤为：
步骤 501 , non ICS UE向 eMSC发起传统的位置更新请求消息， 该消息 为 MM消息；
步骤 502 - 504 , eMSC与 HSS间完成 MAP的位置更新；
步骤 505, eMSC代替 non lCS UE向归属的 IMS网络发起注册消息， 该 消息能标识 eMSC代替 non ICS UE向 IMS网络发起注册；
步骤 506, CSCF与 HSS发起注册交互；
如果 non ICS UE签约了会议业务， 同时 HSS也配置了 non ICS UE所属 的会议服务器地址， 则向 CSCF下发会议服务器地址。
步骤 507, CSCF向 eMSC回送 SIP的成功响应消息；
CSCF根据运营策略， 可以选择 HSS下发的用户所属的会议服务器地址 或者本地配置的用户所属的会议服务器地址， 在 SIP成功响应消息中携带选 择的会议服务器地址；
步骤 508, eMSC根据步骤 507携带会议服务器地址，保存会议服务器地 址， 供会议业务使用；
步骤 509 , eMSC向 non ICS UE回送位置更新完成消息。
其中步骤 508和步骤 509可以无先后顺序。
如图 6所示， 为本发明的 eMSC获取会议服务器地址的实施方式三， 是 通过订阅获得会议服务器地址， 其具体步骤为：
步骤 601 - 605, 如上 501-505步骤描述;
步骤 606, CSCF与 HSS发起注册交互；
步骤 607 , CSCF向 eMSC回送 SIP的成功响应消息；
步骤 608, eMSC向 non ICS UE回送位置更新完成消息；
步骤 609, eMSC向 CSCF发送注册订阅消息， 指示要获取用户的会议服 务器地址； 步骤 610, CSCF向 eMSC回成功响应消息；
步骤 611 , CSCF向 eMSC发送通知消息， 该消息中携带用户所属的会议 服务器地址 (这里 CSCF也可以从 HSS获取用户所属的会议服务器地址或者 使用本地配置的用户所属的会议服务器地址） ；
步骤 612, eMSC向 CSCF回成功响应消息；
步骤 613 , eMSC根据步骤 610携带会议服务器地址，保存会议服务器地 址， 供会议业务使用。
其中步骤 608和步骤 609 - 613可以无先后顺序。
如图 7所示， 为本发明的 eMSC获取会议服务器地址的实施方式四， 由 eMSC根据业务请求的信息或者 eMSC保存用户的信息推算得出， 具体步骤 为：
步骤 701 , non ICS UE向 eMSC发起业务请求；
这里的业务请求， 可以是位置更新、 呼叫， 甚至可以是在作会议业务本 身。
步骤 702, eMSC根据业务请求的信息或者 eMSC保存的 non ICS UE用 户的信息推算出 non ICS UE的会议服务器地址；
如 non ICS UE的国际移动用户识别码中有移动国家码（ MCC )和移动网 络 号 （ MNC ) 信 息 ， 可 以 推 算 出 会议 服 务 器 地 址 为 conference.MCC.MNC.3GPP.org, 其中 conference表示会议， 3GPP表示第 3 代移动合作伙伴， org表示一种组织， 因此 eMSC可以根据推算出的 non ICS UE的会议服务器地址找到会议服务器地址。
步骤 703 , eMSC保存会议服务地址。如果用户能在步骤 701做会议业务 时推算出会议服务器地址， 此步可以不需要。
当然， 本发明还可有其他多种实施例， 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 工业实用性
本发明解决了 eMSC怎么获取签约会议业务的 non ICS UE的会议服务 地址，同时也实现了 non ICS UE作为主席方实现 IMS集中控制业务的会议 务。

Claims

权 利 要 求 书
1、 一种 IP多媒体子系统集中业务主席方会议业务的实现方法， 非 IP多 媒体子系统 IMS集中业务的用户设备签约了会议业务， 且与多个用户设备处 于通话状态， 该用户设备作为主席方用户设备实现会议业务的方法包括： 所述主席方用户设备向增强移动交换中心服务器 eMSC发起会议建立请 求， 所述 eMSC收到该请求后， 根据所述主席方用户设备所属的会议服务器 地址， 向所述会议服务器发送创建会议业务的会话请求消息；
所述会议服务器向所述 eMSC回复成功响应信息， 所述 eMSC收到后， 邀 请当前与所述主席方用户设备通话的用户设备加入会议， 成功后向所述主席 方用户设备回送会议建立成功消息。
2、 如权利要求 1所述的实现方法， 其特征在于， 所述 eMSC按以下方式获 得所述主席方用户设备所属的会议服务器地址：
所述主席方用户设备向所述 eMSC发起电路域的位置更新请求消息； 所述 eMSC向归属用户服务器 HSS发起移动应用部分的位置更新请求消 息；
所述 HSS在向 eMSC插入用户数据时或在向 eMSC回送的位置更新成功响 应中携带所述主席方用户设备所属的会议服务器地址；
所述 eMSC保存所述主席方用户设备所属的会议服务器地址，并向所述主 席方用户设备返回位置更新完成消息。
3、 如权利要求 1所述的实现方法， 其特征在于， 所述 eMSC按以下方式获 得所述主席方用户设备所属的会议服务器地址：
所述主席方用户设备向 eMSC发起电路域的位置更新请求消息， 所述 eMSC与 HSS之间完成移动应用部分的位置更新；
所述 eMSC向归属 IMS网络发起注册请求消息并指示该注册请求是代替 所述主席方用户设备发起的；
呼叫会话控制功能 CSCF与 HSS发起注册交互，并将 HSS下发的或者本 地配置的所述主席方用户设备所属的会议服务器地址通过成功响应回送给所 述 eMSC;
所述 eMSC保存收到的所述会议服务器地址， 向所述主席方用户设备回 送位置更新完成消息。
4、 如权利要求 1所述的实现方法， 其特征在于， 所述 eMSC按以下方式获 得所述主席方用户设备所属的会议服务器地址：
所述主席方用户设备向 eMSC发起电路域的位置更新请求消息， 所述 eMSC与 HSS之间完成移动应用部分的位置更新；
所述 eMSC向归属 IMS网络发起注册请求消息并指示该注册请求是代替 所述主席方用户设备发起的， 成功完成注册后， 向所述主席方用户设备返回 位置更新完成消息；
所述 eMSC向所述 CSCF发送注册订阅消息， 指示要获取所述用户的会议 服务器地址；
所述 CSCF向所述 eMSC返回成功响应消息以及带有所述主席方用户设备 所属的会议服务器地址的通知消息， 该 eMSC收到后返回给 CSCF成功响应， 并保存所述主席方用户设备所属的会议服务器地址。
5、 如权利要求 4所述的实现方法， 其特征在于：
所述 CSCF通过通知消息向所述 eMSC返回的所述主席方用户设备所属的 会议服务器地址是从 HSS获取的或者是本地配置的。
6、 如权利要求 1所述的方法， 其特征在于， 所述 eMSC按以下方式获得所 述主席方用户设备所属的会议服务器地址：
所述主席方用户设备向所述 eMSC发起业务请求；
所述 eMSC根据业务请求的信息或根据保存的所述主席方用户设备的信 息推算出该主席方用户设备的会议服务器地址。
7、 如权利要求 6所述的方法， 其特征在于：
所述 eMSC是根据所述主席方用户设备的移动国家码 MCC、 移动网络号 信息 MNC、 会议标识、 网络标识和约定的组织标识中的一种或多种来推算出 所述主席方用户设备所属的会议服务器地址。
8、 如权利要求 6所述的方法， 其特征在于：
所述业务请求不是发起会议业务时， 所述 eMSC需要保存所推算出的主 席方用户设备所属的会议服务器地址。
9、 如权利要求 1所述的方法， 其特征在于：
所述被邀请加入会议的用户设备为多媒体子系统用户设备时，所述 eMSC 直接指示该用户设备加入会议业务， 该用户设备主动发起建立到会议服务器 的连接， 所述 eMSC释放到该用户设备之间的会议业务建立前建立的承载。
10、 如权利要求 1所述的方法， 其特征在于：
所述被邀请加入会议的用户设备为普通的移动终端或固定终端时， 所述 eMSC指示会议服务器， 由会议服务器邀请该用户设备所属网关来代替该用 户设备加入会议， 所述网关发起建立到会议服务器的承载后， 关联会议业务 建立的承载和所述网关到该用户设备的承载， 并释放所述网关到所述 eMSC 之间的会议业务建立前建立的承载。
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CN101198101B (zh) 2011-11-30
EP2234452A1 (en) 2010-09-29
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