WO2011006329A1 - 基于ip多媒体子系统的远程协助实现方法、装置及系统 - Google Patents

基于ip多媒体子系统的远程协助实现方法、装置及系统 Download PDF

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Publication number
WO2011006329A1
WO2011006329A1 PCT/CN2009/075235 CN2009075235W WO2011006329A1 WO 2011006329 A1 WO2011006329 A1 WO 2011006329A1 CN 2009075235 W CN2009075235 W CN 2009075235W WO 2011006329 A1 WO2011006329 A1 WO 2011006329A1
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Prior art keywords
terminal
media resource
remote assistance
request message
media
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PCT/CN2009/075235
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English (en)
French (fr)
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WO2011006329A8 (zh
Inventor
陈红领
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中兴通讯股份有限公司
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Publication of WO2011006329A1 publication Critical patent/WO2011006329A1/zh
Publication of WO2011006329A8 publication Critical patent/WO2011006329A8/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1069Session establishment or de-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1101Session protocols
    • H04L65/1104Session initiation protocol [SIP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/131Protocols for games, networked simulations or virtual reality

Definitions

  • the present invention relates to an IP multimedia technology, and in particular to a remote assistance implementation method, apparatus and system based on an IP multimedia subsystem. Background technique
  • Remote Assistance provides users with convenient services.
  • IMS IP Multimedia Subsystem
  • a friend or computer expert can help solve the computer problem. For example, with authorization, an expert can view your screen and even gain control of your computer.
  • the present invention has been made in view of the problem in the related art that a technical solution for realizing a remote assistance function using a general standard protocol (for example, SIP protocol) is also lacking in the IP multimedia subsystem.
  • a technical solution for realizing a remote assistance function using a general standard protocol for example, SIP protocol
  • the main object of the present invention is to provide an improved The remote assistance implementation scheme based on the IP multimedia subsystem solves at least one of the above problems.
  • a remote assistance implementation method based on IP multimedia subsystem comprising:
  • the first terminal and the media resource server reserve media resources and establish a connection
  • the second terminal and the media resource server reserve media resources and establish a connection; the second terminal provides remote assistance to the first terminal through the media resource server.
  • the method further includes: The first terminal sends a first request message to the media resource server via the conference application server; the first request message carries media resource information and remote assistance conference information of the first terminal, where the media of the first terminal
  • the resource information includes an IP address and a port of the first terminal.
  • the method further includes: the second terminal sending the media resource information of the second terminal to the media resource server, where the media resource information of the second terminal Includes the IP address and port of the second terminal.
  • the sending, by the second terminal, the media resource information of the second terminal to the media resource server includes:
  • the conference application server sends a second request message to the second terminal, where the second request message carries the media resource information of the conference application server, the remote assistance conference information, and the conference application server receives the second request message.
  • a feedback message of the terminal where the feedback message carries media resource information of the second terminal;
  • the conference application server sends a third request message to the media resource server, where the third request message carries the media resource information of the second terminal and the remote assistance conference information.
  • the providing, by the second terminal, the remote assistance for the first terminal by the media resource server includes: sending, by the media resource server, a first data request message to the first terminal at a first predetermined time interval, and receiving data from the first terminal ;
  • the media resource server receives a second data request message from the second terminal at a second predetermined time interval
  • the media resource server sends data from the first terminal to the second terminal; the second terminal performs remote assistance on the first terminal according to the received data.
  • a media resource server based on an IP multimedia subsystem comprising:
  • a resource reservation unit configured to reserve a media resource
  • a first interface configured to establish a connection with the first terminal by using the media resource reserved by the resource reservation unit
  • a second interface configured to establish a connection with the second terminal by using the media resource reserved by the media reservation unit
  • an interaction unit configured to enable the first terminal to provide remote assistance for the second terminal by using the connection established by the first interface and the connection established by the second interface.
  • the interaction unit includes:
  • a first sending module configured to send a first data request message to the first terminal at a first predetermined time interval
  • a first receiving module configured to receive data from the first terminal
  • a second receiving module configured to receive a second data request message from the second terminal at a second predetermined time interval
  • a second sending module configured to send the data from the first terminal to the second terminal.
  • a remote assistance implementation system based on IP multimedia subsystem comprising:
  • a media resource server configured to reserve media resources for the first terminal and the second terminal, and establish a connection with the first terminal and the second terminal respectively;
  • a conference application server configured to implement interaction between the media resource server and the first terminal and the second terminal, and media resource information and remote assistance conference information from the first terminal and the The media resource information and the remote assistance conference information of the second terminal are provided to the media resource server.
  • the conference application server includes:
  • a third receiving module configured to receive a first request message from the first terminal, where the first request message carries media resource information of the first terminal and remote assistance conference information that needs to be established, where the first terminal is The media resource information includes an IP address and a port of the first terminal; a third sending module, configured to send a second request message to the second terminal, where the second request message carries media resource information of the conference application server, and the remote assistance conference information;
  • a fourth receiving module configured to receive a feedback message from the second terminal, where the feedback message carries media resource information of the second terminal
  • the fourth sending module is configured to send a third request message to the media resource server, where the third request message carries the media resource information of the second terminal and the remote assistance conference information.
  • the media resource server includes:
  • a first sending module configured to send a first data request message to the first terminal at a first predetermined time interval
  • a first receiving module configured to receive data from the first terminal
  • a second receiving module configured to receive a second data request message from the second terminal at a second predetermined time interval
  • a second sending module configured to send the data from the first terminal to the second terminal.
  • the first terminal and the media resource server reserve media resources and establish a connection; the second terminal and the media resource server reserve media resources and establish a connection; and the second terminal provides remote assistance to the first terminal through the media resource server.
  • the invention solves the problem that the technical solution of using the common standard protocol (for example, Session Initiation Protocol (SIP)) to implement the remote assistance function in the IP multimedia subsystem is solved, and the use in the IP multimedia subsystem is realized.
  • SIP Session Initiation Protocol
  • the universal standard protocol implements the remote assistance function, which increases interoperability and standardization and effectively improves the user experience.
  • FIG. 1 is a schematic structural diagram of an embodiment of a remote assistance implementation system based on an IP multimedia subsystem according to the present invention
  • FIG. 2 is a flow chart of an embodiment of a method for implementing remote assistance based on an IP multimedia subsystem according to the present invention
  • FIG. 3 is a flow chart of a preferred embodiment of a remote assistance implementation method based on an IP multimedia subsystem of the present invention
  • FIG. 5 is a structural block diagram of an embodiment of a media resource server based on an IP multimedia subsystem according to the present invention
  • FIG. 6 is a structural block diagram of a preferred embodiment of a media resource server based on an IP multimedia subsystem according to the present invention
  • FIG. 7 is a structural block diagram of an embodiment of a remote assistance implementation system based on an IP multimedia subsystem of the present invention.
  • FIG. 8 is a structural block diagram of a preferred embodiment of a remote assistance implementation system based on an IP multimedia subsystem according to the present invention. detailed description
  • the embodiment of the present invention provides Based on the remote assistance implementation of the IP multimedia subsystem, the first terminal and the media resource server exchange media resource information, including an IP address and port, a data conference type (eg, remote assistance), and the like through the conference application server using SIP and SDP; After the media resource reservation of one terminal and the media resource server is successful, the data conference is successfully created, and the two parties establish a TCP-based data conference media channel for the remote assistance function.
  • media resource information including an IP address and port, a data conference type (eg, remote assistance), and the like
  • SIP and SDP Session Initiation Protocol
  • the data conference is successfully created, and the two parties establish a TCP-based data conference media channel for the remote assistance function.
  • the second terminal and the media resource server exchange media resource information, including the IP address and port, the data conference type, and the like by using the SIP and the SDP through the conference application server.
  • the TCP data conferencing media channel is used by the latter remote assistance feature.
  • the data conference media channel between the first terminal and the media resource server and between the second terminal and the media resource server is successfully established, and the first terminal and the second terminal start to use the data conference media channel to implement the remote assistance function based on the RFB.
  • the remote assistance function between any SIP terminals in the IMS environment is realized by using the protocol exchange signaling of the general standard.
  • FIG. 1 is a schematic diagram showing the architecture of an embodiment of a remote assistance implementation system based on an IP multimedia subsystem of the present invention.
  • the terminal A establishes a connection with the conference application server and performs information interaction.
  • the terminal B establishes a connection with the conference application server and performs information interaction.
  • the terminal A can also establish a connection with the MRS through the conference application server, and perform information interaction.
  • the terminal B It is also possible to establish a connection with the MRS through the conference application server and perform information interaction.
  • terminal A and terminal B can implement remote assistance using MRS.
  • FIG. 2 is a flow diagram of an embodiment of a remote assistance implementation method based on an IP multimedia subsystem of the present invention Cheng Tu. As shown in Figure 2, the following steps are included:
  • Step 200 The first terminal and the media resource server reserve media resources and establish a connection.
  • the first terminal and the media resource server need to reserve media resources in order to create a conference. For example, if a video or audio conference is established, an audio and video device or the like needs to be enabled.
  • the two parties After the resource reservation is successful, the two parties establish a connection and can perform signaling interaction.
  • the method further includes: the first terminal sends the first request message to the media resource server by using the conference application server, where the first request message carries the media resource information of the first terminal and the remote assistance conference information, where The media resource information of the terminal includes: an IP address and a port of the first terminal.
  • the method further includes: the second terminal sends the media resource information of the second terminal to the media resource server, where the media resource information of the second terminal includes: an IP address and a port of the second terminal.
  • the sending, by the second terminal, the media resource information of the second terminal to the media resource server may be further implemented by:
  • the conference application server sends a second request message to the second terminal, where the second request message carries the media resource information of the conference application server and the remote assistance conference information;
  • the conference application server receives the feedback message from the second terminal, where the feedback message carries the media resource information of the second terminal;
  • the conference application server sends a third request message to the media resource server, where the third request message carries the media resource information of the second terminal and the remote assistance conference information.
  • the remote assistance conference information may be information such as type information of the conference. That is, you need to create a video conference, audio conference, or other type of conference.
  • Step 201 The second terminal and the media resource server reserve media resources and establish a connection.
  • the second terminal and the media resource server need to reserve media resources, for example, If you are setting up a video or audio conference, you need to enable audio and video equipment, etc.
  • the two parties establish a connection and can proceed. Signaling interaction.
  • Step 202 The second terminal provides remote assistance to the first terminal by using the media resource server.
  • the specific implementation of this step includes:
  • the media resource server sends a first data request message to the first terminal at a first predetermined time interval, and receives data from the first terminal;
  • the media resource server receives the second data request message from the second terminal at the second predetermined time interval
  • the media resource server sends the data from the first terminal to the second terminal; finally, the second terminal performs remote assistance on the first terminal according to the data.
  • the data from the first terminal may be a desktop picture of the first terminal, and the second terminal acquires the desktop picture of the first terminal that is continuously updated through the media resource server, and then the second terminal may observe the first mode in a remote assistance manner.
  • a remote assistance implementation method based on an IP multimedia subsystem which implements a remote assistance function using a universal standard protocol in an IP multimedia subsystem, thereby increasing interoperability and standardization, and effectively improving users.
  • a remote assistance implementation method based on an IP multimedia subsystem which implements a remote assistance function using a universal standard protocol in an IP multimedia subsystem, thereby increasing interoperability and standardization, and effectively improving users.
  • FIG. 3 is a flow chart of a preferred embodiment of a remote assistance implementation method based on an IP multimedia subsystem of the present invention. As shown in Figure 3, the following steps are included:
  • Step 301 The terminal A (the host terminal) sends an Invite message carrying the SDP to the Conf AS, where the SDP contains the media information of the terminal A (such as an IP address and a port, etc., for establishing the remote assistance media channel). ), as well as other information about the data conference (data conference type, member list, etc.).
  • media information of the terminal A such as an IP address and a port, etc., for establishing the remote assistance media channel.
  • Step 303 The Conf AS forwards the Invite from the terminal A (host) to the MRS.
  • Step 305 The terminal A (host) and the MRS exchange media information through the Conf AS, and reserve media channel resources between the two.
  • the signaling involved in step 305 includes: 183 (SDP), PRACK (SDP) /200PRACK, UPDATE (SDP) /200UPDATE.
  • Step 307 After the MRS resource reservation is successful, the terminal A (the host) is notified by 200 (Invite), and the terminal A (the host) also sends a response message ACK, indicating that the terminal A resource is also reserved successfully.
  • Step 309 The Conf AS informs the MRS of the member of the data conference (terminal A) by signaling INFO
  • Step 311 ConfAS invites other data conference members to join the conference site.
  • the signaling involved in step S311 includes: Invite (SDP), 183 (SDP), PRACK (SDP) /200PRACK, UPDATE (SDP) /200UPDATE.
  • the media channel resource reservation between the terminal B and the MRS is successful.
  • Step 313 Terminal B sends a ringing and response message to ConfAS.
  • Step 315 The Conf AS joins the data conference member (terminal B) to the conference by signaling INFO.
  • Step 317 The terminal A (the host) sends the subscription site signaling SUBSCRIBE to the ConfAS; the ConfAS notifies the terminal site A of the current site attribute (meeting theme, chairman, duration, number of members, site control attributes, etc.) by signaling NOTIFY.
  • the terminal A sends the subscription site signaling SUBSCRIBE to the ConfAS; the ConfAS notifies the terminal site A of the current site attribute (meeting theme, chairman, duration, number of members, site control attributes, etc.) by signaling NOTIFY.
  • Step 319 The terminal B sends the subscription site signaling SUBSCRIBE to the ConfAS; the ConfAS notifies the terminal B of the current site attribute by using the signaling NOTIFY.
  • Step 321 ConfAS notifies other members (Terminal A) that Terminal B has joined the conference site through NOTIFY.
  • multiple terminals may be invited to join, not limited to Terminal B in the above embodiment.
  • FIG. 4 is a flow chart of an example of remote assistance media signaling transmission of the present invention. As shown in Figure 4, the following steps are included:
  • Step 401 Maintain a complete desktop snapshot of the terminal A (requesting facilitator) in the MRS memory, and ensure that the desktop snapshot is up-to-date; therefore, the MRS periodically sends a request to the terminal A to obtain data of the desktop rectangle area of the terminal A that has recently changed. .
  • Step 403 After receiving the MRS request, the terminal A (requesting facilitator) calculates the intersection of the desktop graphic changes and sends the MRS to the MRS after the last request from the MRS.
  • the terminal A requesting facilitator
  • the complete desktop snapshot is compressed and sent to the MRS.
  • Step 405 Terminal B (Assistant Provider) periodically sends a request to the MRS to obtain the latest desktop snapshot of Terminal A (Requesting Assistor).
  • Step 407 After receiving the request of the terminal B (Assisting Provider), the MRS calculates the intersection of the desktop graphics change of the terminal A after the last request from the terminal B, and sends it to the terminal B.
  • the MRS when the MRS first receives the request of the terminal B (the assistance provider), the full desktop snapshot of the terminal A is compressed and sent to the terminal B.
  • the request/response involved in the flow shown in Figure 4 can be implemented in accordance with the RFB 3.8 protocol, but is not limited to use.
  • FIG. 5 is a structural block diagram of an embodiment of a media resource server based on an IP multimedia subsystem according to the present invention.
  • 6 is a structural block diagram of a preferred embodiment of a media resource server based on an IP multimedia subsystem of the present invention.
  • an IP multimedia subsystem-based media resource server according to an embodiment of the present invention includes a resource reservation unit, a first interface, a second interface, and an interaction unit. This is described below in conjunction with Figure 6.
  • the resource reservation unit is connected to the interaction unit, and is used to reserve media resources
  • the resource reservation unit reserves resources for the first terminal and reserved resources for the second terminal, respectively. For example, if you want to set up an audio conference, you need to enable the audio device.
  • the first interface is connected to the interaction unit, and is configured to establish a connection with the first terminal by using the media resource reserved by the resource reservation unit;
  • the media resource server establishes a connection with the first terminal, that is, a conference is created, where the conference includes but is not limited to remote assistance.
  • the second interface is connected to the interaction unit, and is configured to establish a connection with the second terminal by using the media resource reserved by the media reservation unit;
  • the interaction unit is respectively connected to the resource reservation unit, the first interface, and the second interface, and is configured to enable the first terminal to provide remote assistance for the second terminal by using the connection established by the first interface and the connection established by the second interface.
  • the interaction unit may further include a first sending module, a first receiving module, a second receiving module, and a second sending module, where the first sending module is configured to use the first predetermined time interval
  • the first terminal sends a first data request message
  • the first receiving module is configured to receive data from the first terminal
  • the second receiving module is configured to receive the second data request message from the second terminal at the second predetermined time interval
  • a second sending module configured to send data from the first terminal to the second terminal.
  • the media resource server is configured to reserve media resources for the first terminal and the second terminal by combining the resource reservation unit, the first interface, the second interface, and the interaction unit.
  • the first terminal and the second terminal respectively establish a connection, and implement remote assistance media signaling interaction.
  • FIG. 7 is a structural block diagram of an embodiment of a remote assistance implementation system based on an IP multimedia subsystem according to the present invention.
  • FIG. 8 is a structural block diagram of a preferred embodiment of a remote assistance implementation system based on an IP multimedia subsystem according to the present invention.
  • the IP multimedia subsystem-based remote assistance implementation system includes: a media resource server and a conference application server, which are described below in conjunction with FIG. 8. a media resource server, configured to reserve media resources for the first terminal and the second terminal, and establish a connection with the first terminal and the second terminal respectively;
  • a conference application server configured to implement interaction between the media resource server and the first terminal and the second terminal, and the media resource information and the remote assistance conference information from the first terminal, and the media resource information and the remote assistance conference from the second terminal Information is provided to the media resource server.
  • the conference application server includes: a third sending module, a third sending module, a fourth receiving module, and a fourth sending module.
  • the third receiving module is configured to receive the first request message from the first terminal, where the first request message carries the media resource information of the first terminal and the remote assistance conference information that needs to be established, and the media resource of the first terminal
  • the information includes: an IP address and a port of the first terminal;
  • a third sending module configured to send a second request message to the second terminal, where the second request message carries the media resource information of the conference application server and the remote assistance conference information;
  • a fourth receiving module configured to receive a feedback message from the second terminal, where the feedback message carries the media resource information of the second terminal;
  • the fourth sending module is configured to send a third request message to the media resource server, where the third request message carries the media resource information of the second terminal and the remote assistance conference information.
  • the foregoing media resource server includes a first sending module, a first receiving module, a second receiving module, and a second sending module, where
  • a first sending module configured to send a first data request message to the first terminal at a first predetermined time interval
  • a first receiving module configured to receive data from the first terminal
  • a second receiving module configured to use the second predetermined The time interval receives the second data request message from the second terminal
  • the second sending module is configured to send data from the first terminal to the second terminal.
  • a remote assistance implementation system based on the IP multimedia subsystem is provided.
  • the mutual assistance between the media resource server and the conference application server realizes the remote assistance function between any SIP terminals in the IMS environment.
  • the remote assistance implementation scheme based on the IP multimedia subsystem is provided, and the universal standard protocol exchange signaling is used to implement the remote assistance function between any SIP terminals in the IMS environment.
  • the invention solves the problem that the technical solution of using the common standard protocol (for example, Session Initiation Protocol (SIP)) to implement the remote assistance function in the IP multimedia subsystem is solved, and the common standard is used in the IP multimedia subsystem.
  • the protocol implements the remote assistance function, which increases interoperability and standardization and effectively improves the user experience.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

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Description

基于 IP多媒体子系统的远程协助实现方法、 装置及系统 技术领域
本发明涉及 IP多媒体技术, 具体而言, 涉及一种基于 IP多媒体子系统 的远程协助实现方法、 装置及系统。 背景技术
作为 IP多媒体子系统( IMS , IP Multimedia Subsystem ) 中有特色的业 务, 远程协助为用户提供了便捷的服务。 当某一用户请求远程协助业务时, 可以让朋友或计算机专家协助解决计算机难题。 例如, 在获得授权的前提 下, 专家可以查看您的屏幕, 甚至可以取得您计算机的控制权。
目前, 即时通讯软件的远程协助功能大都釆用自定义协议, 缺乏互通 性和规范性, 用户体验较低。 因此, 在 IP多媒体子系统中还缺少使用通用 标准协议(例如, SIP协议) 实现远程协助功能的技术方案。 发明内容
针对相关技术中在 IP多媒体子系统中还缺少使用通用标准协议(例如, SIP协议)实现远程协助功能的技术方案的问题而提出本发明, 为此, 本发 明的主要目的在于提供一种改进的基于 IP多媒体子系统的远程协助实现方 案, 以解决上述问题至少之一。
一种基于 IP多媒体子系统的远程协助实现方法, 包括:
第一终端和媒体资源服务器预留媒体资源, 并建立连接;
第二终端和所述媒体资源服务器预留媒体资源, 并建立连接; 第二终端通过媒体资源服务器为第一终端提供远程协助。
在所述第一终端和媒体资源服务器预留媒体资源之前, 还包括: 所述第一终端经由会议应用服务器向媒体资源服务器发送第一请求消 息; 所述第一请求消息中携带有所述第一终端的媒体资源信息和远程协助 会议信息, 其中, 第一终端的媒体资源信息包括所述第一终端的 IP地址和 端口。
在所述第二终端和所述媒体资源服务器预留媒体资源之前, 还包括: 所述第二终端向媒体资源服务器发送第二终端的媒体资源信息, 其中, 所述第二终端的媒体资源信息包括第二终端的 IP地址和端口。
所述第二终端向所述媒体资源服务器发送所述第二终端的媒体资源信 息包括:
所述会议应用服务器向第二终端发送第二请求消息, 所述第二请求消 息中携带有所述会议应用服务器的媒体资源信息、 所述远程协助会议信息; 所述会议应用服务器接收来自第二终端的反馈消息, 所述反馈消息中 携带有所述第二终端的媒体资源信息;
所述会议应用服务器向媒体资源服务器发送第三请求消息, 所述第三 请求消息中携带有第二终端的媒体资源信息、 以及所述远程协助会议信息。
所述第二终端通过媒体资源服务器为第一终端提供远程协助包括: 所述媒体资源服务器以第一预定时间间隔向第一终端发送第一数据请 求消息, 并接收来自所述第一终端的数据;
所述媒体资源服务器以第二预定时间间隔接收来自第二终端的第二数 据请求消息;
所述媒体资源服务器将来自第一终端的数据发送至第二终端; 所述第二终端根据接收到的数据对第一终端进行远程协助。
一种基于 IP多媒体子系统的媒体资源服务器, 包括:
资源预留单元, 用于预留媒体资源; 第一接口, 用于通过所述资源预留单元预留的媒体资源与第一终端建 立连接;
第二接口, 用于通过所述媒体预留单元预留的媒体资源与第二终端建 立连接;
交互单元, 用于使得所述第一终端使用第一接口建立的连接和第二接 口建立的连接, 为第二终端提供远程协助。
所述交互单元包括:
第一发送模块, 用于以第一预定时间间隔向所述第一终端发送第一数 据请求消息;
第一接收模块, 用于接收来自所述第一终端的数据;
第二接收模块, 用于以第二预定时间间隔接收来自所述第二终端的第 二数据请求消息;
第二发送模块, 用于将来自所述第一终端的所述数据发送至所述第二 终端。
一种基于 IP多媒体子系统的远程协助实现系统, 包括:
媒体资源服务器, 用于为第一终端和第二终端预留媒体资源, 并与所 述第一终端和所述第二终端分别建立连接;
会议应用服务器, 用于实现所述媒体资源服务器和所述第一终端以及 所述第二终端之间的交互, 将来自所述第一终端的媒体资源信息和远程协 助会议信息以及来自所述第二终端的媒体资源信息和远程协助会议信息提 供给所述媒体资源服务器。
所述会议应用服务器包括:
第三接收模块, 用于接收来自第一终端的第一请求消息, 所述第一请 求消息中携带有所述第一终端的媒体资源信息和需要建立的远程协助会议 信息, 所述第一终端的媒体资源信息包括第一终端的 IP地址和端口; 第三发送模块, 用于向所述第二终端发送第二请求消息, 所述第二请 求消息中携带有所述会议应用服务器的媒体资源信息、 所述远程协助会议 信息;
第四接收模块, 用于接收来自所述第二终端的反馈消息, 所述反馈消 息中携带有所述第二终端的媒体资源信息;
第四发送模块, 用于向所述媒体资源服务器发送第三请求消息, 所述 第三请求消息中携带有所述第二终端的媒体资源信息、 以及所述远程协助 会议信息。
所述媒体资源服务器包括:
第一发送模块, 用于以第一预定时间间隔向所述第一终端发送第一数 据请求消息;
第一接收模块, 用于接收来自所述第一终端的数据;
第二接收模块, 用于以第二预定时间间隔接收来自所述第二终端的第 二数据请求消息;
第二发送模块, 用于将来自所述第一终端的所述数据发送至所述第二 终端。
通过本发明, 第一终端和媒体资源服务器预留媒体资源, 并建立连接; 第二终端和媒体资源服务器预留媒体资源, 并建立连接; 第二终端通过媒 体资源服务器为第一终端提供远程协助。 解决了相关技术中在 IP多媒体子 系统中还缺少使用通用标准协议 (例如, 会话初始协议 ( SIP , Session Initiation Protocol ) ) 实现远程协助功能的技术方案的问题, 实现了在 IP多 媒体子系统中使用通用标准协议实现远程协助功能, 从而增加了互通性和 规范性, 有效提高了用户体验。
本发明的其它特征和优点将在随后的说明书中阐述, 并且, 部分地从 说明书中变得显而易见, 或者通过实施本发明而了解。 本发明的目的和其 他优点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结 构来实现和获得。 附图说明
此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一 部分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发 明的不当限定。 在附图中:
图 1为本发明基于 IP多媒体子系统的远程协助实现系统的实施例的架 构示意图;
图 2为本发明基于 IP多媒体子系统的远程协助实现方法的实施例的流 程图;
图 3为本发明基于 IP多媒体子系统的远程协助实现方法的优选实施例 的流程图;
图 4为本发明远程协助媒体信令传输的实例的流程图;
图 5为本发明基于 IP多媒体子系统的媒体资源服务器的实施例的结构 框图;
图 6为本发明基于 IP多媒体子系统的媒体资源服务器的优选实施例的 结构框图;
图 7为本发明基于 IP多媒体子系统的远程协助实现系统的实施例的结 构框图;
图 8为本发明基于 IP多媒体子系统的远程协助实现系统的优选实施例 的结构框图。 具体实施方式
考虑到相关技术中在 IP多媒体子系统中还缺少使用通用标准协议(例 如, SIP协议)实现远程协助功能的技术方案的问题, 本发明实施例提供了 基于 IP多媒体子系统的远程协助实现方案, 第一终端和媒体资源服务器通 过会议应用服务器使用 SIP和 SDP交换媒体资源信息,包含 IP地址和端口、 数据会议类型 (例如, 远程协助) 等等; 第一终端和媒体资源服务器的媒 体资源预留都成功后, 成功创建数据会议, 双方建立基于 TCP的数据会议 媒体通道供远程协助功能使用。 第二终端和媒体资源服务器通过会议应用 服务器使用 SIP和 SDP交换媒体资源信息, 包含 IP地址和端口、数据会议 类型等等; 第二终端和媒体资源服务器的资源预留都成功后, 双方建立基 于 TCP的数据会议媒体通道供后面远程协助功能使用。 上述第一终端和媒 体资源服务器之间以及第二终端和媒体资源服务器之间的数据会议媒体通 道均建立成功, 第一终端和第二终端开始基于 RFB使用数据会议媒体通道 实现远程协助功能。 根据本发明提供的实施例, 釆用通用标准的协议交换 信令, 实现了 IMS环境下任意 SIP终端之间的远程协助功能。
需要说明的是, 在不冲突的情况下, 本申请中的实施例及实施例中的 特征可以相互组合。 下面将参考附图并结合实施例来详细说明本发明。
图 1为本发明基于 IP多媒体子系统的远程协助实现系统的实施例的架 构示意图图。 如图 1所示, 根据本发明实施例的基于 IP多媒体子系统的远 程协助实现系统包括: 至少两台终端, 图 1 中以两台终端即终端 A (主持 人)和终端 B 为例; 会议应用服务器 (Conf AS, Conference Application Server ), 媒体资源服务器(MRS, Media Resource Server )„ 其中,
终端 A和会议应用服务器建立连接, 并进行信息交互; 终端 B和会议 应用服务器建立连接, 并进行信息交互, 终端 A还可以通过会议应用服务 器与 MRS建立连接, 并进行信息交互, 同样, 终端 B也可以通过会议应用 服务器与 MRS建立连接, 并进行信息交互。 由此, 在建立上述连接之后, 终端 A和终端 B可以利用 MRS实现远程协助。
图 2为本发明基于 IP多媒体子系统的远程协助实现方法的实施例的流 程图。 如图 2所示, 包括以下步骤:
步骤 200: 第一终端和媒体资源服务器预留媒体资源, 并建立连接。 本步骤中, 第一终端和媒体资源服务器为了创建会议, 需要预留媒体 资源, 例如, 如果建立视频或音频会议, 则需要启用音视频设备等。 在资 源预留成功之后, 双方即建立了连接, 可以进行信令的交互。
在步骤 200之前, 还进一步包括, 第一终端经由会议应用服务器向媒 体资源服务器发送第一请求消息, 其中, 第一请求消息中携带有第一终端 的媒体资源信息和远程协助会议信息, 第一终端的媒体资源信息包括: 第 一终端的 IP地址和端口。
在步骤 200之后, 还进一步包括, 第二终端向媒体资源服务器发送第 二终端的媒体资源信息, 其中, 第二终端的媒体资源信息包括: 第二终端 的 IP地址和端口。 优选地, 第二终端向媒体资源服务器发送第二终端的媒 体资源信息可以进一步通过以下处理实现:
首先, 会议应用服务器向第二终端发送第二请求消息, 其中, 第二请 求消息携带有会议应用服务器的媒体资源信息、 远程协助会议信息;
之后, 会议应用服务器接收来自第二终端的反馈消息, 其中, 反馈消 息携带有第二终端的媒体资源信息;
然后, 会议应用服务器向媒体资源服务器发送第三请求消息, 其中, 第三请求消息携带有第二终端的媒体资源信息、 以及远程协助会议信息。
优选地, 远程协助会议信息可以为会议的类型信息等信息。 即需要创 建的是视频会议、 音频会议还是其他类型的会议。
步骤 201 : 第二终端和媒体资源服务器预留媒体资源, 并建立连接. 本步骤中, 为了将第二终端邀请加入上述会议中, 第二终端和媒体资 源服务器都需要预留媒体资源, 例如, 如果建立视频或音频会议, 则需要 启用音视频设备等。 在资源预留成功之后, 双方即建立了连接, 可以进行 信令的交互。
步骤 202: 第二终端通过媒体资源服务器为第一终端提供远程协助。本 步骤具体实现包括:
首先, 媒体资源服务器以第一预定时间间隔向第一终端发送第一数据 请求消息, 并接收来自第一终端的数据;
之后, 媒体资源服务器以第二预定时间间隔接收来自第二终端的第二 数据请求消息;
然后, 媒体资源服务器将来自第一终端的数据发送至第二终端; 最后, 第二终端根据数据对第一终端进行远程协助。
其中, 来自第一终端的数据可以是第一终端的桌面图片, 第二终端通 过媒体资源服务器获取到不断更新的第一终端的桌面图片, 之后, 第二终 端可以以远程协助的方式观测第一终端显示的图像, 并为第一终端提供远 程协助。
通过上述实施例, 提供了一种基于 IP多媒体子系统的远程协助实现方 法, 实现了在 IP多媒体子系统中使用通用标准协议实现远程协助功能, 从 而增加了互通性和规范性, 有效提高了用户体验。
图 3为本发明基于 IP多媒体子系统的远程协助实现方法的优选实施例 的流程图。 如图 3所示, 包括以下步骤:
步骤 301 : 终端 A (主持人终端)发送携带 SDP的邀请 ( Invite ) 消息 到达 Conf AS, 其中, SDP中含有终端 A的媒体信息 (如 IP地址和端口等 等, 用于远程协助媒体通道的建立), 以及数据会议的其他信息(数据会议 类型、 成员列表等等)。
步骤 303: Conf AS转发来自终端 A (主持人) 的 Invite到 MRS。 步骤 305: 终端 A (主持人 )和 MRS通过 Conf AS交互媒体信息, 并 预留二者之间的媒体通道资源。 步骤 305涉及的信令包括: 183 ( SDP )、 PRACK ( SDP ) /200PRACK, UPDATE ( SDP ) /200UPDATE。
假设在步骤 305中终端 A (主持人)和 MRS之间的媒体通道资源预留 成功。
步骤 307: MRS资源预留成功后, 通过 200 ( Invite )告知终端 A (主 持人), 终端 A (主持人) 亦发出响应信息 ACK, 表示终端 A资源也预留 成功。
通过上述步骤, 一个远程协助类型的数据会议已经创建成功。
步骤 309: Conf AS通过信令 INFO把数据会议的成员 (终端 A )告知 MRS„
步骤 311 : ConfAS邀请其他数据会议成员加入会场。
其中, 步骤 S311涉及的信令包括: Invite ( SDP )、 183 ( SDP )、 PRACK ( SDP ) /200PRACK、 UPDATE ( SDP ) /200UPDATE。
其中, 终端 B和 MRS之间的媒体通道资源预留成功。
步骤 313: 终端 B向 ConfAS发送振铃和应答消息。
步骤 315: Conf AS通过信令 INFO把数据会议成员 (终端 B )加入会 场。
步骤 317:终端 A(主持人)向 ConfAS发送订阅会场信令 SUBSCRIBE; ConfAS通过信令 NOTIFY向终端 A通知当前会场属性(会议主题、 主席、 时长、 成员数、 会场控制属性等等)。
步骤 319: 终端 B向 ConfAS发送订阅会场信令 SUBSCRIBE; ConfAS 通过信令 NOTIFY向终端 B通知当前会场属性。
步骤 321 : ConfAS通过 NOTIFY通知其他成员 (终端 A )终端 B已经 加入会场。
优选地, 对于一个会议模式, 可以邀请多个终端加入其中, 不仅限于 上述实施例中的终端 B。
图 4为本发明远程协助媒体信令传输的实例的流程图。 如图 4所示, 包括以下步骤:
步骤 401 : MRS内存中维持完整的终端 A (请求协助者)的桌面快照, 并保证该桌面快照是最新的; 因此, MRS定期发送请求给终端 A, 获取终 端 A最近变化的桌面矩形区域的数据。
步骤 403: 终端 A (请求协助者)收到 MRS的请求后, 计算出上次来 自 MRS的请求之后桌面图形变化的交集发送给 MRS。
优选地, 终端 A (请求协助者 )初次收到 MRS的请求时, 将完整的桌 面快照压缩发送给 MRS。
步骤 405: 终端 B (协助提供者 )定期发送请求给 MRS, 获取终端 A (请求协助者) 的最新桌面快照。
步骤 407: MRS收到终端 B (协助提供者) 的请求后, 计算出上次来 自终端 B的请求之后终端 A的桌面图形变化的交集发送给终端 B。
优选地, MRS初次收到终端 B (协助提供者) 的请求时, 将终端 A的 完整桌面快照压缩发送给终端 B。
优选地, 图 4所示流程中涉及的请求 /响应可以遵照 RFB3.8协议实现, 但不限使用该协议。
图 5为本发明基于 IP多媒体子系统的媒体资源服务器的实施例的结构 框图。 图 6为本发明基于 IP多媒体子系统的媒体资源服务器的优选实施例 的结构框图。 如图 5所示, 根据本发明实施例的基于 IP多媒体子系统的媒 体资源服务器包括资源预留单元、 笫一接口、 第二接口及交互单元。 以下 结合图 6进行介绍。
资源预留单元与交互单元相连接, 用于预留媒体资源;
优选地, 资源预留单元分别为第一终端预留资源和第二终端预留资源, 例如, 如果要建立音频会议, 则需要启用音频设备。
第一接口与交互单元相连接, 用于通过资源预留单元预留的媒体资源 与第一终端建立连接;
优选地, 媒体资源服务器与第一终端建立连接, 即创建了一个会议, 其中, 该会议包括但不限于远程协助。
第二接口与交互单元相连接, 用于通过媒体预留单元预留的媒体资源 与第二终端建立连接;
交互单元, 分别与资源预留单元、 第一接口、 第二接口相连接, 用于 使得第一终端使用第一接口建立的连接和第二接口建立的连接, 为第二终 端提供远程协助。
优选地, 如图 6 所示, 交互单元可以进一步包括第一发送模块、 第一 接收模块、 第二接收模块和第二发送模块, 其中, 第一发送模块, 用于以 第一预定时间间隔向第一终端发送笫一数据请求消息; 第一接收模块, 用 于接收来自第一终端的数据; 第二接收模块, 用于以第二预定时间间隔接 收来自第二终端的第二数据请求消息; 第二发送模块, 用于将来自第一终 端的数据发送至第二终端。
通过上述实施例, 提供了一种媒体资源服务器, 通过资源预留单元、 第一接口、 第二接口及交互单元的相互结合, 实现了为第一终端和第二终 端预留媒体资源, 并与第一终端和笫二终端分别建立了连接, 实现了远程 协助媒体信令的交互。
图 7为本发明基于 IP多媒体子系统的远程协助实现系统的实施例的结 构框图。 图 8为本发明基于 IP多媒体子系统的远程协助实现系统的优选实 施例的结构框图。 如图 7所示, 根据本发明实施例的基于 IP多媒体子系统 的远程协助实现系统包括: 媒体资源服务器及会议应用服务器, 以下结合 图 8进行介绍。 媒体资源服务器, 用于为第一终端和第二终端预留媒体资源, 并与第 一终端和第二终端分别建立连接;
会议应用服务器, 用于实现媒体资源服务器和第一终端以及第二终端 之间的交互, 将来自第一终端的媒体资源信息和远程协助会议信息以及来 自第二终端的媒体资源信息和远程协助会议信息提供给媒体资源服务器。
优选地, 如图 8 所示, 会议应用服务器包括: 第三发送模块、 第三发 送模块, 第四接收模块, 第四发送模块。
其中, 第三接收模块, 用于接收来自第一终端的第一请求消息, 其中, 第一请求消息携带有第一终端的媒体资源信息和需要建立的远程协助会议 信息, 第一终端的媒体资源信息包括: 第一终端的 IP地址和端口;
第三发送模块, 用于向第二终端发送第二请求消息, 其中, 第二请求 消息携带有会议应用服务器的媒体资源信息、 远程协助会议信息;
第四接收模块, 用于接收来自第二终端的反馈消息, 其中, 反馈消息 携带有第二终端的媒体资源信息;
第四发送模块, 用于向媒体资源服务器发送第三请求消息, 其中, 第 三请求消息携带有第二终端的媒体资源信息、 以及远程协助会议信息。
优选地, 如图 8 所示, 上述媒体资源服务器包括第一发送模块、 第一 接收模块、 第二接收模块、 以及第二发送模块, 其中,
第一发送模块, 用于以第一预定时间间隔向第一终端发送第一数据请 求消息; 第一接收模块, 用于接收来自第一终端的数据; 第二接收模块, 用于以第二预定时间间隔接收来自笫二终端的第二数据请求消息; 第二发 送模块, 用于将来自第一终端的数据发送至第二终端。
通过上述实施例, 提供了一种基于 IP多媒体子系统的远程协助实现系 统, 通过媒体资源服务器与会议应用服务器的相互结合, 实现了在 IMS环 境下任意 SIP终端之间实现远程协助功能。 综上所述, 通过本发明的上述实施例, 提供的基于 IP多媒体子系统的 远程协助实现方案, 釆用通用标准的协议交换信令, 实现了 IMS环境下任 意 SIP终端之间实现远程协助功能。 解决了相关技术中在 IP多媒体子系统 中还缺少使用通用标准协议(例如, 会话初始协议(SIP, Session Initiation Protocol ) ) 实现远程协助功能的技术方案的问题, 在 IP多媒体子系统中使 用通用标准协议实现远程协助功能, 增加了互通性和规范性, 有效提高了 用户体验。
显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤 可以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者 分布在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执 行的程序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来 执行, 或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模 块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任何特 定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于 本领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精 神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明 的保护范围之内。

Claims

权利要求书
1、一种基于 IP多媒体子系统的远程协助实现方法,其特征在于,包括: 第一终端和媒体资源服务器预留媒体资源, 并建立连接;
第二终端和所述媒体资源服务器预留媒体资源, 并建立连接; 第二终端通过媒体资源服务器为第一终端提供远程协助。
2、 根据权利要求 1所述的远程协助实现方法, 其特征在于, 在所述第 一终端和媒体资源服务器预留媒体资源之前, 还包括:
所述第一终端经由会议应用服务器向媒体资源服务器发送第一请求消 息; 所述第一请求消息中携带有所述第一终端的媒体资源信息和远程协助 会议信息, 其中, 第一终端的媒体资源信息包括所述第一终端的 IP地址和 端口。
3、 根据权利要求 1所述的远程协助实现方法, 其特征在于, 在所述第 二终端和所述媒体资源服务器预留媒体资源之前, 还包括:
所述第二终端向媒体资源服务器发送第二终端的媒体资源信息, 其中, 所述第二终端的媒体资源信息包括第二终端的 IP地址和端口。
4、 根据权利要求 3所述的远程协助实现方法, 其特征在于, 所述第二 终端向所述媒体资源服务器发送所述第二终端的媒体资源信息包括:
所述会议应用服务器向第二终端发送第二请求消息, 所述第二请求消 息中携带有所述会议应用服务器的媒体资源信息、 所述远程协助会议信息; 所述会议应用服务器接收来自第二终端的反馈消息, 所述反馈消息中 携带有所述第二终端的媒体资源信息;
所述会议应用服务器向媒体资源服务器发送第三请求消息, 所述第三 请求消息中携带有第二终端的媒体资源信息、 以及所述远程协助会议信息。
5、 根据权利要求 1至 4中任一项所述的远程协助实现方法, 其特征在 于, 所述第二终端通过媒体资源服务器为第一终端提供远程协助包括: 所述媒体资源服务器以第一预定时间间隔向第一终端发送第一数据请 求消息, 并接收来自所述第一终端的数据;
所述媒体资源服务器以第二预定时间间隔接收来自第二终端的第二数 据请求消息;
所述媒体资源服务器将来自第一终端的数据发送至第二终端; 所述第二终端根据接收到的数据对第一终端进行远程协助。
6、 一种基于 IP多媒体子系统的媒体资源服务器, 其特征在于, 包括: 资源预留单元, 用于预留媒体资源;
第一接口, 用于通过所述资源预留单元预留的媒体资源与第一终端建 立连接;
第二接口, 用于通过所述媒体预留单元预留的媒体资源与第二终端建 立连接;
交互单元, 用于使得所述第一终端使用第一接口建立的连接和第二接 口建立的连接, 为第二终端提供远程协助。
7、 根据权利要求 6所述的媒体资源服务器, 其特征在于, 所述交互单 元包括:
第一发送模块, 用于以第一预定时间间隔向所述第一终端发送第一数 据请求消息;
第一接收模块, 用于接收来自所述第一终端的数据;
第二接收模块, 用于以第二预定时间间隔接收来自所述第二终端的第 二数据请求消息;
第二发送模块, 用于将来自所述第一终端的所述数据发送至所述第二 终端。
8、一种基于 IP多媒体子系统的远程协助实现系统,其特征在于,包括: 媒体资源服务器, 用于为第一终端和第二终端预留媒体资源, 并与所 述第一终端和所述第二终端分别建立连接;
会议应用服务器, 用于实现所述媒体资源服务器和所述第一终端以及 所述第二终端之间的交互, 将来自所述第一终端的媒体资源信息和远程协 助会议信息以及来自所述第二终端的媒体资源信息和远程协助会议信息提 供给所述媒体资源服务器。
9、 根据权利要求 8所述的远程协助实现系统, 其特征在于, 所述会议 应用服务器包括:
第三接收模块, 用于接收来自第一终端的第一请求消息, 所述第一请 求消息中携带有所述第一终端的媒体资源信息和需要建立的远程协助会议 信息, 所述第一终端的媒体资源信息包括第一终端的 IP地址和端口; 第三发送模块, 用于向所述第二终端发送第二请求消息, 所述第二请 求消息中携带有所述会议应用服务器的媒体资源信息、 所述远程协助会议 信息;
第四接收模块, 用于接收来自所述第二终端的反馈消息, 所述反馈消 息中携带有所述第二终端的媒体资源信息;
第四发送模块, 用于向所述媒体资源服务器发送第三请求消息, 所述 第三请求消息中携带有所述第二终端的媒体资源信息、 以及所述远程协助 会议信息。
10、 根据权利要求 9所述的远程协助实现系统, 其特征在于, 所述媒 体资源服务器包括:
第一发送模块, 用于以第一预定时间间隔向所述第一终端发送第一数 据请求消息;
第一接收模块, 用于接收来自所述第一终端的数据; 第二接收模块, 用于以第二预定时间间隔接收来自所述第二终端的第 二数据请求消息;
第二发送模块, 用于将来自所述第一终端的所述数据发送至所述第二 终端。
PCT/CN2009/075235 2009-07-14 2009-12-01 基于ip多媒体子系统的远程协助实现方法、装置及系统 WO2011006329A1 (zh)

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