WO2011127690A1 - Ip多媒体子系统中的点对点远程协助方法、系统及终端 - Google Patents

Ip多媒体子系统中的点对点远程协助方法、系统及终端 Download PDF

Info

Publication number
WO2011127690A1
WO2011127690A1 PCT/CN2010/074269 CN2010074269W WO2011127690A1 WO 2011127690 A1 WO2011127690 A1 WO 2011127690A1 CN 2010074269 W CN2010074269 W CN 2010074269W WO 2011127690 A1 WO2011127690 A1 WO 2011127690A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
assistance
request
media
point
Prior art date
Application number
PCT/CN2010/074269
Other languages
English (en)
French (fr)
Inventor
陈红领
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2011127690A1 publication Critical patent/WO2011127690A1/zh

Links

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
    • H04L65/1101Session 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 the field of communications technologies, and in particular, to a point-to-point remote assistance method, system, and terminal in a network protocol (IP) multimedia subsystem.
  • IP network protocol
  • the remote assistance function is provided to the user as a color enhancement function.
  • the Remote Assistance feature provides a way for users to request remote assistance.
  • the Remote Assistance feature allows friends or computer experts to help solve computer problems. Under the premise of obtaining authorization, the expert can view the remote assistance function to launch the user's screen, and even obtain the control of the computer of the remote assistance function user.
  • the present invention aims to provide a point-to-point remote assistance method, system and terminal in an IP multimedia subsystem, so that the remote assistance function has good versatility and standardization.
  • the invention provides a point-to-point remote assistance method in an IP multimedia subsystem service, which comprises:
  • a point-to-point remote assistance method in an IP multimedia subsystem service comprising:
  • the media channel resource reservation is After the work, the two establish a media channel according to the reserved media channel resources, and use the established media channel to perform point-to-point remote assistance.
  • the step A specifically includes:
  • step A2 When the request assistance terminal and the assistance providing terminal respectively determine that they have peer-to-peer remote assistance capabilities, perform step A2;
  • the request assistance terminal and the assistance providing terminal use a session initiation protocol SIP and a session description protocol SDP protocol, exchange media resource information by using the application server, and reserve media between the two according to the media resource information.
  • SIP session initiation protocol
  • SDP session description protocol
  • the step A1 specifically includes:
  • the request assistance terminal and the assistance providing terminal respectively register with an application server; the request assistance terminal and the assistance providing terminal respectively determine according to an address that the registration signal is received from the application server, if the received registration letter is received If the address of the order is its actual address, it is considered to have peer-to-peer remote assistance capability and notify the other party through the application server; otherwise, it is considered that it does not have peer-to-peer assistance capability.
  • the step A2 specifically includes:
  • the requesting assistance terminal uses a SIP protocol and an SDP protocol, and sends, by the application server, a message carrying the media resource information of the request assistance terminal to the assistance providing terminal;
  • the assistance providing terminal uses a SIP protocol and an SDP protocol, Returning, by the application server, a message carrying the media resource information of the assistance providing terminal to the request assistance terminal; the request assistance terminal and the assistance providing terminal respectively reserve two according to the received media resource information.
  • Media channel resources
  • the step B specifically includes:
  • the request assistance terminal and the assistance providing terminal establish a TCP link according to the reserved media channel resource.
  • the assistance providing terminal periodically requests the request to assist the terminal to provide changed desktop data through the media channel.
  • the step B2 specifically includes:
  • the assistance providing terminal periodically sends a request to the request assistance terminal, and the request assistance terminal provides the complete desktop data to the assistance providing terminal when receiving the request of the assistance providing terminal for the first time;
  • the terminal When receiving the request for assisting the providing terminal, the terminal provides the desktop area data that changes in the predetermined time to the request assisting terminal.
  • a point-to-point remote assistance system in an IP multimedia subsystem service comprising: at least two terminals and an application server, wherein the terminal is a request assistance terminal and an assistance providing terminal, respectively, wherein the request assistance terminal and the assistance providing terminal
  • the media channel information is exchanged between the application server and the media channel resource between the two is reserved according to the media resource information; the request assistance terminal and the assistance providing terminal are also used for After the media channel resource reservation is successful, a media channel is established according to the reserved media channel resource, and the media channel is used for point-to-point remote assistance.
  • the terminal specifically includes an exchange processing module, a channel establishment module, and a remote module, where the exchange processing module is configured to exchange media resource information with the common application server of the counterpart terminal by using the SIP protocol and the SDP protocol, and reserve the resource resource information according to the media resource information. And requesting the media channel resource between the terminal and the assistance providing terminal;
  • a channel establishing module configured to establish a media channel according to the reserved media channel resource after the media channel resource reservation is successful
  • a remote module configured to periodically request the counterpart terminal to provide changed desktop data through the media channel or periodically provide the changed desktop data to the counterpart terminal.
  • a terminal as a request assistance terminal or an assistance providing terminal, includes an exchange processing module, a channel establishment module, and a remote assistance module, where
  • Switch processing module for using SIP protocol and SDP protocol and common application service of the other terminal
  • the server exchanges media resource information, and reserves media channel resources between the request assistance terminal and the assistance providing terminal according to the media resource information;
  • a channel establishing module configured to establish a media channel according to the reserved media channel resource after the media channel resource reservation is successful
  • a remote module configured to periodically request the counterpart terminal to provide changed desktop data through the media channel or periodically provide the changed desktop data to the counterpart terminal.
  • the switching processing module is specifically configured to determine whether the terminal has the point-to-point remote assistance capability.
  • the SIP protocol and the SDP protocol are used to exchange media resources with the common application server of the opposite terminal.
  • the invention overcomes the problem of lack of versatility and standardization brought by the use of a custom protocol in the existing remote assistance, so that the remote assistance function has good interoperability and scalability.
  • FIG. 1 is a flow chart of an embodiment of a method of establishing signaling for a media channel for point-to-point remote assistance according to the present invention
  • FIG. 2 is a schematic flow chart of an embodiment of a peer-to-peer remote assistance method according to the present invention
  • FIG. 3 is a schematic structural diagram of an embodiment of a peer-to-peer remote assistance system according to the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of an invention terminal. detailed description
  • the process of determining whether the request assistance terminal and the assistance providing terminal both have the peer-to-peer remote assistance capability may include:
  • the request assistance terminal and the assistance providing terminal utilize the Session Initiation Protocol (SIP) to determine whether the network environment in which the network environment is located has the capability of peer-to-peer remote assistance.
  • SIP Session Initiation Protocol
  • the method of determining is: the terminal (requesting the assistance terminal or assisting the providing terminal) knows that the address of the AS receiving the AS signaling is not in its own actual address, and is considered to be in the network address translation (NAT, The IP).
  • Network Address Translator (see RFC 1631) does not have peer-to-peer remote assistance capability in the environment; if it is its actual address, it is considered to be in a large network environment and has peer-to-peer remote assistance capability.
  • the process of determining whether the request assistance terminal and the assistance providing terminal all have the point-to-point remote assistance capability may be omitted;
  • the technical staff can also use other methods to determine whether the request assistance terminal and the assistance providing terminal all have the peer-to-peer remote assistance capability.
  • the embodiments of the present invention are merely illustrative.
  • the request assistance terminal and the assistance providing terminal exchange media resource information through the AS and according to the exchange
  • the media resource information reserves the media channel resource between the two; after the media channel resource reservation between the two is successful, the requesting assistance terminal and the assistance providing terminal establish a media channel according to the reserved media channel resource, and use the established Media channel for point-to-point remote assistance.
  • FIG. 1 is a signaling flowchart of a media channel for performing point-to-point remote assistance in a method according to an embodiment of the present invention. It is assumed that the terminal includes two terminals: terminal A and terminal B, where The terminal A serves as the request assistance terminal, and the terminal B serves as the assistance providing terminal.
  • the method mainly includes the following steps:
  • Step 101 The terminal A sends an invite message to the AS, where the invite message includes a message header in a SIP signaling format and a message body in a Session Description Protocol (SDP) format, and the message body of the invite message includes the media resource of the terminal A.
  • Information such as IP addresses and ports, is used to remotely assist in the establishment of media channels.
  • Step 102 The AS forwards the invite message from the terminal A to the terminal B, and the terminal B starts to reserve the media channel resource according to the received media resource of the terminal A.
  • the signaling involved includes: 183 (SDP), temporary response notification (PRACK) (SDP) /200PRACK, update (UPDATE) (SDP) /200UPDATE, specifically:
  • Steps 103 to 104 The terminal B sends a 183 SDP message to the AS, and the AS forwards the 183 SDP message from the terminal B to the terminal A.
  • the purpose of the two steps is that the terminal B sends its own media resource information to the terminal A through the AS;
  • Steps 105 to 106 The terminal A responds to the 183 SDP message, sends a PRACK message to the AS, and the AS forwards the PRACK message from the terminal A to the terminal B. Then, the terminal B responds to the PRACK message, and sends a 200 PRACK message to the AS, which is forwarded by the AS. Terminal B's PRACK message to terminal A;
  • Step 107 and step 108 Terminal A sends an UPDATE (SDP) message to the AS, AS. Forwarding the UPDATE (SDP) message from the terminal A to the terminal B, the purpose of the two steps is to notify the terminal B of the media resource information updated by the terminal A;
  • SDP UPDATE
  • Step 109 and step 110 The terminal B responds to the UPDATE (SDP) message, sends a 200 OK (UPDATE) (SDP) message to the AS, and the AS forwards an update confirmation message (200 OK (UPDATE) (SDP)) from the terminal B to the terminal A. ;
  • SDP UPDATE
  • SDP 200 OK
  • SDP update confirmation message
  • the terminal B sends a ringing event to notify the terminal A that the media channel resource reservation is successful, and the terminal A also sends a response message, indicating that the media channel resource of the terminal A is also reserved successfully;
  • the signaling includes: ringing message (180 Ring), PRACK (SDP) /200PRACK, 200OK (invite) / response message (ACK), specifically:
  • Step 111 and step 112 Terminal B sends a 180 Ring message (ringing message) to the AS,
  • the AS forwards the 180 Ring message from the terminal B to the terminal A;
  • Step 113 and step 114 The terminal A responds to the 180 Ring message, sends a PRACK message to the AS, and the AS forwards the PRACK message from the terminal A to the terminal B. Then the terminal B responds to the PRACK message, sends a 200 PRACK message to the AS, and is forwarded by the AS. Terminal B's 200 PRACK message to terminal A;
  • Step 115 and step 116 In response to the invite message of step 102, the terminal B sends a 200 OK (invite) message to the AS, and the AS forwards an invite confirmation message (200 OK (invite)) from the terminal B to the terminal A, indicating the terminal B media.
  • the channel resource reservation is successful;
  • Step 117 and step 118 In response to the 200 OK (invite) message, the terminal A sends an ACK message to the AS, and the AS forwards the ACK message from the terminal A to the terminal B, indicating that the terminal A also media channel resource reservation is successful;
  • step 111 After performing step 111 to step 118, the condition of the media channel establishment of the point-to-point remote assistance is already available, and then step 119 is performed;
  • Step 119 Terminal A and Terminal B establish a Transmission Control Protocol (TCP) link for use by the point-to-point remote assistance function.
  • TCP Transmission Control Protocol
  • FIG. 2 is a schematic flowchart of a point-to-point remote assistance in a method according to an embodiment of the present invention, which mainly includes the following steps:
  • Step 201 Maintain a complete desktop snapshot in the memory of the terminal A, and ensure that the desktop snapshot is up to date.
  • Step 202 The terminal B periodically sends a request to the terminal A to obtain the desktop area data of the terminal A.
  • the terminal A compresses and sends the complete desktop snapshot to the terminal B when the terminal A receives the request of the terminal B for the first time.
  • Step 203 After receiving the request of the terminal B, the terminal A calculates the desktop area data that is changed after the last request from the terminal B, and sends the data to the terminal B.
  • the request/response involved in the media signaling in the peer-to-peer remote assistance process is implemented in accordance with the RFB3.8 protocol, and is not described here.
  • FIG. 3 is a schematic structural diagram of a system according to an embodiment of the present invention, which may include: at least two terminals and an application server, where the terminal is a request assistance terminal and an assistance providing terminal, where
  • the assistance providing terminal is further configured to establish a media channel according to the reserved media channel resources, and perform point-to-point remote assistance by using the established media channel.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention, where the terminal can serve as a request assistance terminal or as an assistance providing terminal.
  • the terminal specifically includes an exchange processing module, a channel establishment module, and a remote module, where
  • An exchange processing module configured to exchange media resource information with a common application server of the other terminal by using a SIP protocol and an SDP protocol, and reserve a request between the request assistance terminal and the assistance providing terminal according to the exchanged media resource information Media channel resources; Specifically, when the terminal serves as the request assistance terminal, the exchange processing module determines whether the terminal has the point-to-point remote assistance capability, and when the terminal and the assistance providing terminal both have the point-to-point remote assistance capability, and assists the providing terminal to use the SIP.
  • the protocol and the SDP protocol universal application server exchange media resource information, and according to the media resource information reservation request, assist the terminal and assist the media channel resource between the terminal; when the terminal serves as the assistance providing terminal, the exchange processing module determines the terminal Whether the peer-to-peer remote assistance capability is available, when the terminal and the request assistance terminal both have the peer-to-peer remote assistance capability, the exchange processing module and the request assistance terminal exchange the media resource information using the SIP protocol and the SDP protocol universal application server, and according to the media resource information.
  • the reservation request assists the terminal and assists in providing media channel resources between the terminals.
  • a channel establishing module configured to establish a media channel according to the reserved media channel resource after the media channel resource reservation is successful
  • the remote module is configured to periodically request the other terminal to provide changed desktop data through the established media channel or periodically provide the changed desktop data to the other terminal.
  • the remote module when assisting to provide the terminal, the remote module periodically sends a request to the request assistance terminal, and after obtaining the complete desktop data provided by the request facilitator for the first time, periodically obtains the change within the predetermined time provided by the request facilitator.
  • Desktop area data When the terminal serves as the request assistance terminal, when the remote module first receives the request for assisting the providing terminal, the complete desktop data is provided to the assistance providing terminal; and when receiving the request for assisting the providing terminal, the desktop area changes within a predetermined time. The data is provided to the request assistance terminal.
  • the embodiment of the present invention provides a point-to-point remote assistance method, system, and terminal in an IP multimedia subsystem, which has good interoperability and scalability, and overcomes the use of a custom protocol band in the existing remote assistance. There is a lack of versatility and normative issues.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Multimedia (AREA)
  • Telephonic Communication Services (AREA)

Abstract

本发明提供了一种IP多媒体子系统中的点对点远程协助方法、系统及终端,包括:请求协助终端和协助提供终端通过应用服务器交换媒体资源信息并根据所述媒体资源信息预留二者之间的媒体通道资源;当所述请求协助终端和所述协助提供终端二者之间的媒体通道资源预留成功后,根据预留的媒体通道资源建立媒体通道,并利用所述媒体通道进行点对点远程协助。本发明使得远程协助功能具有了很好的互通性和扩展性,克服了现有远程协助中采用自定义协议带来的缺乏通用性和规范性的问题。

Description

IP多媒体子系统中的点对点远程协助方法、 系统及终端 技术领域
本发明涉及通信技术领域, 尤其涉及一种网络协议( IP )多媒体子系统 中的点对点远程协助方法、 系统及终端。 背景技术
在 IP多媒体子系统( IMS , IP Multimedia Subsystem )业务中, 远程协 助功能作为一个增色的功能提供给用户使用。 远程协助功能提供了用户之 间请求远程协助的方式, 通过远程协助功能, 可以让朋友或计算机专家协 助解决计算机难题。 在获得授权的前提下, 专家可以查看远程协助功能发 起用户的屏幕, 甚至可以取得远程协助功能大器用户的计算机的控制权 。
目前, 即时通讯软件的远程协助功能大都是采用自定义协议, 缺乏互 通性和规范性。 发明内容
鉴于上述的分析, 本发明旨在提供一种 IP多媒体子系统中的点对点远 程协助方法、 系统及终端, 使得远程协助功能具备良好的通用性和规范性。
本发明的目的主要是通过以下技术方案实现的:
本发明提供了一种 IP多媒体子系统业务中的点对点远程协助方法, 包 括:
一种 IP多媒体子系统业务中的点对点远程协助方法, 该方法包括:
A. 请求协助终端和协助提供终端通过应用服务器交换媒体资源信息 , 并根据所述媒体资源信息预留二者之间的媒体通道资源;
B. 当请求协助终端和协助提供终端二者之间的媒体通道资源预留成 功后, 二者根据预留的媒体通道资源建立媒体通道, 并利用建立的媒体通 道进行点对点远程协助。
所述步驟 A具体包括:
A1. 当所述请求协助终端和所述协助提供终端分别判断出自身均具备 点对点远程协助能力时执行步驟 A2;
A2. 所述请求协助终端和所述协助提供终端使用会话初始协议 SIP和 会话描述协议 SDP协议, 通过所述应用服务器交换媒体资源信息, 并根据 所述媒体资源信息预留二者之间的媒体通道资源。
所述步驟 A1具体包括:
所述请求协助终端和所述协助提供终端分别注册到应用服务器; 所述请求协助终端和所述协助提供终端分别根据自身从应用服务器接 收到注册信令的地址进行判断, 如果接收到的注册信令的地址为自身的实 际地址, 则认为自身具备点对点远程协助能力, 并通过应用服务器通知对 方; 否则认为自身不具备点对点协助能力。
所述步驟 A2具体包括:
所述请求协助终端使用 SIP协议和 SDP协议, 通过所述应用服务器发 送携带有所述请求协助终端的媒体资源信息的消息给所述协助提供终端; 所述协助提供终端使用 SIP协议和 SDP协议, 通过所述应用服务器返 回携带有所述协助提供终端的媒体资源信息的消息给所述请求协助终端; 所述请求协助终端和所述协助提供终端分别根据接收到的媒体资源信 息预留二者之间的媒体通道资源。
所述步驟 B具体包括:
B1. 当所述请求协助终端和所述协助提供终端二者之间的媒体通道资 源预留成功后, 所述请求协助终端和所述协助提供终端根据预留的媒体通 道资源建立 TCP链路作为媒体通道; B2. 所述协助提供终端通过所述媒体通道定期请求所述请求协助终端 提供变化的桌面数据。
所述步驟 B2具体包括:
所述协助提供终端定期发送请求给所述请求协助终端, 所述请求协助 终端初次收到所述协助提供终端的请求时, 将完整的桌面数据提供给所述 协助提供终端; 之后所述请求协助终端收到所述协助提供终端的请求时, 将预定时间内变化的桌面区域数据提供给所述请求协助终端。
一种 IP多媒体子系统业务中的点对点远程协助系统, 包括: 至少两个 终端和应用服务器, 所述终端分别为请求协助终端和协助提供终端, 其中, 所述请求协助终端和所述协助提供终端, 分别用于通过所述应用服务 器交换媒体资源信息并根据所述媒体资源信息预留二者之间的媒体通道资源; 所述请求协助终端和所述协助提供终端, 还用于当二者之间的媒体通 道资源预留成功后, 根据预留的媒体通道资源建立媒体通道, 并利用所述 媒体通道进行点对点远程协助。
所述终端具体包括交换处理模块、 通道建立模块和远程模块, 其中, 交换处理模块, 用于使用 SIP协议和 SDP协议和对方终端通用应用服 务器交换媒体资源信息, 并根据所述媒体资源信息预留所述请求协助终端 和所述协助提供终端二者之间的媒体通道资源;
通道建立模块, 用于在媒体通道资源预留成功后, 和对方终端根据预 留的媒体通道资源建立媒体通道;
远程模块, 用于通过所述媒体通道定期请求所述对方终端提供变化的 桌面数据或者定期向所述对方终端提供变化的桌面数据。
一种终端, 作为请求协助终端或者协助提供终端, 包括交换处理模块、 通道建立模块以及远程协助模块, 其中,
交换处理模块, 用于使用 SIP协议和 SDP协议和对方终端通用应用服 务器交换媒体资源信息, 并根据所述媒体资源信息预留所述请求协助终端 和所述协助提供终端二者之间的媒体通道资源;
通道建立模块, 用于在媒体通道资源预留成功后, 和对方终端根据预 留的媒体通道资源建立媒体通道;
远程模块, 用于通过所述媒体通道定期请求所述对方终端提供变化的 桌面数据或者定期向所述对方终端提供变化的桌面数据。
所述交换处理模块, 具体用于判断本终端是否均具备点对点远程协助 能力, 当确认本终端和对方终端均具备点对点远程协助能力时, 使用 SIP 协议和 SDP协议和对方终端通用应用服务器交换媒体资源信息, 并根据所 述媒体资源信息预留所述请求协助终端和所述协助提供终端二者之间的媒 体通道资源。
本发明克服了现有远程协助中采用自定义协议带来的缺乏通用性和规 范性的问题, 使得远程协助功能具有了很好的互通性和扩展性。
本发明的其他特征和优点将在随后的说明书中阐述, 并且, 部分的从 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
图 1 为本发明建立用于进行点对点远程协助的媒体通道的信令的方法 的实施例的流程图;
图 2为本发明点对点远程协助方法的实施例的流程示意图;
图 3为本发明点对点远程协助系统的实施例的组成结构示意图; 图 4为发明终端的实施例的组成结构示意图。 具体实施方式
下面结合附图来具体描述本发明的优选实施例, 其中, 附图构成本申 请一部分, 并与本发明的实施例一起用于阐释本发明的原理。 为了清楚和 简化目的, 当其可能使本发明的主题模糊不清时, 将省略本文所描述的器 件中已知功能和结构的详细具体说明。
首先结合附图 1和附图 2对本发明实施例所述 IP多媒体子系统中的点 对点远程协助方法进行详细说明。
在本发明实施例中, 首先需要判断请求协助终端和协助提供终端是否 均具备点对点远程协助能力, 判断请求协助终端和协助提供终端是否均具 备点对点远程协助能力的过程具体可以包括:
请求协助终端和协助提供终端分别注册到应用服务器( AS );
请求协助终端和协助提供终端利用会话初始协议 ( SIP ), 通过和 AS的 注册流程判断出自身所处的网络环境是否具备点对点远程协助的能力。
判断方法为: 终端(请求协助终端或者协助提供终端)从 AS返回的信 令中得知自身接收 AS信令的地址如果不是自身的实际地址,则认为自身处 在网络地址转换 ( NAT , The IP Network Address Translator, 参见 RFC 1631 ) 环境中, 则不具备点对点远程协助能力; 如果是自身的实际地址, 则认为 自身处在大网环境中, 具备点对点远程协助能力。
需要说明的是, 当已知请求协助终端和协助提供终端二者均具备点对 点远程协助能力时, 也可以省略判断请求协助终端和协助提供终端是否均 具备点对点远程协助能力的过程; 同时, 本领域技术人员也可以采用其他 方法来判断请求协助终端和协助提供终端是否均具备点对点远程协助能 力, 本发明实施例仅为举例说明。
当确认请求协助终端和协助提供终端二者均具备点对点远程协助能力 时,请求协助终端和协助提供终端通过 AS交换媒体资源信息并根据交换的 媒体资源信息预留二者之间的媒体通道资源; 当二者之间的媒体通道资源 预留成功后, 请求协助终端和协助提供终端根据预留的媒体通道资源建立 媒体通道, 并利用建立的媒体通道进行点对点远程协助。
如图 1所示, 图 1为本发明实施例方法中, 建立用于进行点对点远程 协助的媒体通道的信令流程图 ,假设本发明实施例中包括两个终端:终端 A 和终端 B, 其中, 终端 A作为请求协助终端, 终端 B作为协助提供终端, 则所述方法主要包括如下步驟:
步驟 101: 终端 A发送邀请 ( invite )消息到达 AS, 其中 invite消息包 括 SIP信令格式的消息头和会话描述协议 ( SDP )格式的消息体, 邀请消息 的消息体中含有该终端 A的媒体资源信息, 比如 IP地址和端口等, 用于远 程协助媒体通道的建立。
步驟 102: AS转发来自终端 A的 invite消息到终端 B, 终端 B开始根 据接收到的终端 A的媒体资源进行媒体通道资源预留。
步驟 103〜步驟 110, 终端 A和终端 B通过 AS交互媒体资源信息, 并 预留二者之间的媒体通道资源; 涉及的信令包含: 183 ( SDP )、 临时响应告 知( PRACK ) ( SDP ) /200PRACK, 更新 ( UPDATE ) ( SDP ) /200UPDATE, 具体为:
步驟 103〜步驟 104: 终端 B发送 183 SDP消息给 AS, 由 AS转发来自 终端 B的 183 SDP消息到终端 A, 这两个步驟目的是终端 B将自己的媒体 资源信息通过 AS发送给终端 A;
步驟 105〜步驟 106: 终端 A响应 183 SDP消息, 发送 PRACK消息给 AS, 由 AS转发来自终端 A的 PRACK消息到终端 B; 然后终端 B响应 PRACK消息,发送 200 PRACK消息给 AS ,由 AS转发来自终端 B的 PRACK 消息到终端 A;
步驟 107和步驟 108: 终端 A发送 UPDATE ( SDP ) 消息给 AS, AS 转发来自终端 A的 UPDATE ( SDP ) 消息到终端 B, 这两个步驟的目的是 将终端 A更新的媒体资源信息通知终端 B;
步驟 109和步驟 110: 终端 B响应 UPDATE ( SDP )消息,发送 200 OK ( UPDATE ) ( SDP )消息到 AS, AS转发来自终端 B的更新确认消息(200 OK ( UPDATE ) ( SDP ) )到终端 A;
步驟 111〜步驟 118, 终端 B预留媒体通道资源完成后, 发出振铃事件, 告知终端 A媒体通道资源预留成功, 终端 A亦发出响应信息, 表示终端 A 媒体通道资源也预留成功;涉及的信令包含:振铃消息( 180 Ring )、 PRACK ( SDP ) /200PRACK, 200OK ( invite ) /响应消息 (ACK ), 具体为:
步驟 111和步驟 112: 终端 B发送 180 Ring 消息(振铃消息 )给 AS,
AS转发来自终端 B的 180 Ring 消息到终端 A;
步驟 113和步驟 114: 终端 A响应 180 Ring消息, 发送 PRACK消息 给 AS, 由 AS转发来自终端 A的 PRACK消息到终端 B; 然后终端 B响应 PRACK消息, 发送 200 PRACK消息给 AS, 由 AS转发来自终端 B的 200 PRACK消息到终端 A;
步驟 115和步驟 116:终端 B响应步驟 102的 invite消息,发送 200 OK ( invite ) 消息给 AS, 由 AS转发来自终端 B 的邀请确认消息(200 OK ( invite ) )到终端 A, 表示终端 B媒体通道资源预留成功;
步驟 117和步驟 118: 终端 A响应 200 OK ( invite ) 消息, 发送 ACK 消息到 AS, AS转发来自终端 A的 ACK消息到终端 B, 表示终端 A也媒 体通道资源预留成功;
执行完步驟 111〜步驟 118, 点对点远程协助的媒体通道建链的条件已 经具备, 接着执行步驟 119;
步驟 119: 终端 A和终端 B建立传输控制协议(TCP )链路供点对点 远程协助功能使用。 如图 2所示, 图 2为本发明实施例方法中, 点对点远程协助的流程示 意图, 主要包括如下步驟:
步驟 201 : 终端 A内存中维持完整的桌面快照, 并保证该桌面快照是 最新的。
步驟 202: 终端 B定期发送请求给终端 A, 获取终端 A最近变化的桌 面区域数据; 需要说明的是, 终端 A初次收到终端 B的请求时, 会把完整 的桌面快照压缩发送给终端 B。
步驟 203: 终端 A收到终端 B的请求后, 计算出上次来自终端 B的请 求之后变化的桌面区域数据发送给终端 B。
这里,点对点远程协助过程中的媒体信令涉及的请求 /响应遵照 RFB3.8 协议实现, 此处不再赘述。
接下来结合附图 3对本发明系统实施例进行详细说明。
如图 3所示, 图 3为本发明实施例所述系统的结构示意图, 可以包括: 至少两个终端和应用服务器, 终端分别为请求协助终端和协助提供终端, 其中,
请求协助终端和协助提供终端 , 主要通过应用服务器交换媒体资源信 息并根据媒体资源信息预留二者之间的媒体通道资源; 当二者之间的媒体 通道资源预留成功后, 请求协助终端和协助提供终端还用于, 根据预留的 媒体通道资源建立媒体通道, 并利用建立的媒体通道进行点对点远程协助。
如图 4所示, 图 4为本发明实施例所述终端的结构示意图, 该终端可 以作为请求协助终端, 也可以作为协助提供终端。 终端具体可以包括交换 处理模块、 通道建立模块和远程模块, 其中,
交换处理模块, 用于使用 SIP协议和 SDP协议, 与对方终端通用应用 服务器交换媒体资源信息 , 并根据交换到的媒体资源信息预留所述请求协 助终端和所述协助提供终端二者之间的媒体通道资源; 具体的说就是, 当该终端作为请求协助终端时, 交换处理模块判断本 终端是否均具备点对点远程协助能力, 当确认本终端和协助提供终端均具 备点对点远程协助能力时, 和协助提供终端使用 SIP协议和 SDP协议通用 应用服务器交换媒体资源信息 , 并根据媒体资源信息预留请求协助终端和 协助提供终端二者之间的媒体通道资源; 当该终端作为协助提供终端时, 交换处理模块判断本终端是否均具备点对点远程协助能力, 当确认本终端 和请求协助终端均具备点对点远程协助能力时, 交换处理模块和请求协助 终端使用 SIP协议和 SDP协议通用应用服务器交换媒体资源信息, 并根据 媒体资源信息预留请求协助终端和协助提供终端二者之间的媒体通道资 源。
通道建立模块, 用于在媒体通道资源预留成功后, 和对方终端根据预 留的媒体通道资源建立媒体通道;
远程模块, 用于通过建立的媒体通道定期请求对方终端提供变化的桌 面数据或者定期向对方终端提供变化的桌面数据。
具体的说就是, 当作为协助提供终端时, 远程模块定期发送请求给请 求协助终端, 并在初次获取到请求协助者提供的完整的桌面数据之后, 定 期获取请求协助者提供的预定时间内变化的桌面区域数据。 当该终端作为 请求协助终端时, 远程模块初次收到协助提供终端的请求时, 将完整的桌 面数据提供给协助提供终端; 之后收到协助提供终端的请求时, 将预定时 间内变化的桌面区域数据提供给请求协助终端。
综上所述, 本发明实施例提供了一种 IP多媒体子系统中的点对点远程 协助方法、 系统及终端, 具有很好的互通性和扩展性, 克服了现有远程协 助中采用自定义协议带来的缺乏通用性和规范性的问题。
以上, 仅为本发明较佳的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发 明的保护范围应该以权利要求书的保护范围为准。

Claims

权利要求书
1、 一种 IP多媒体子系统业务中的点对点远程协助方法, 其特征在于, 该方法包括:
A. 请求协助终端和协助提供终端通过应用服务器交换媒体资源信息 , 并根据所述媒体资源信息预留二者之间的媒体通道资源;
B. 当请求协助终端和协助提供终端二者之间的媒体通道资源预留成 功后, 二者根据预留的媒体通道资源建立媒体通道, 并利用建立的媒体通 道进行点对点远程协助。
2、 根据权利要求 1所述的点对点远程协助方法, 其特征在于, 所述步 驟 A具体包括:
A1. 当所述请求协助终端和所述协助提供终端分别判断出自身均具备 点对点远程协助能力时执行步驟 A2;
A2. 所述请求协助终端和所述协助提供终端使用会话初始协议 SIP和 会话描述协议 SDP协议, 通过所述应用服务器交换媒体资源信息, 并根据 所述媒体资源信息预留二者之间的媒体通道资源。
3、 根据权利要求 2所述的点对点远程协助方法, 其特征在于, 所述步 驟 A1具体包括:
所述请求协助终端和所述协助提供终端分别注册到应用服务器; 所述请求协助终端和所述协助提供终端分别根据自身从应用服务器接 收到注册信令的地址进行判断, 如果接收到的注册信令的地址为自身的实 际地址, 则认为自身具备点对点远程协助能力, 并通过应用服务器通知对 方; 否则认为自身不具备点对点协助能力。
4、 根据权利要求 2所述的点对点远程协助方法, 其特征在于, 所述步 驟 A2具体包括:
所述请求协助终端使用 SIP协议和 SDP协议, 通过所述应用服务器发 送携带有所述请求协助终端的媒体资源信息的消息给所述协助提供终端; 所述协助提供终端使用 SIP协议和 SDP协议, 通过所述应用服务器返 回携带有所述协助提供终端的媒体资源信息的消息给所述请求协助终端; 所述请求协助终端和所述协助提供终端分别根据接收到的媒体资源信 息预留二者之间的媒体通道资源。
5、根据权利要求 1~4任一项所述的点对点远程协助方法,其特征在于, 所述步驟 B具体包括:
B1. 当所述请求协助终端和所述协助提供终端二者之间的媒体通道资 源预留成功后, 所述请求协助终端和所述协助提供终端根据预留的媒体通 道资源建立 TCP链路作为媒体通道;
B2. 所述协助提供终端通过所述媒体通道定期请求所述请求协助终端 提供变化的桌面数据。
6、 根据权利要求 5所述的点对点远程协助方法, 其特征在于, 所述步 驟 B2具体包括:
所述协助提供终端定期发送请求给所述请求协助终端, 所述请求协助 终端初次收到所述协助提供终端的请求时, 将完整的桌面数据提供给所述 协助提供终端; 之后所述请求协助终端收到所述协助提供终端的请求时, 将预定时间内变化的桌面区域数据提供给所述请求协助终端。
7、 一种 IP多媒体子系统业务中的点对点远程协助系统, 其特征在于, 包括: 至少两个终端和应用服务器, 所述终端分别为请求协助终端和协助 提供终端, 其中,
所述请求协助终端和所述协助提供终端, 分别用于通过所述应用服务 器交换媒体资源信息并根据所述媒体资源信息预留二者之间的媒体通道资源; 所述请求协助终端和所述协助提供终端, 还用于当二者之间的媒体通 道资源预留成功后, 根据预留的媒体通道资源建立媒体通道, 并利用所述 媒体通道进行点对点远程协助。
8、 根据权利要求 7所述的点对点远程协助系统, 其特征在于, 所述终 端具体包括交换处理模块、 通道建立模块和远程模块, 其中,
交换处理模块, 用于使用 SIP协议和 SDP协议和对方终端通用应用服 务器交换媒体资源信息, 并根据所述媒体资源信息预留所述请求协助终端 和所述协助提供终端二者之间的媒体通道资源;
通道建立模块, 用于在媒体通道资源预留成功后, 和对方终端根据预 留的媒体通道资源建立媒体通道;
远程模块, 用于通过所述媒体通道定期请求所述对方终端提供变化的 桌面数据或者定期向所述对方终端提供变化的桌面数据。
9、 一种终端, 其特征在于, 作为请求协助终端或者协助提供终端, 包 括交换处理模块、 通道建立模块以及远程协助模块, 其中,
交换处理模块, 用于使用 SIP协议和 SDP协议和对方终端通用应用服 务器交换媒体资源信息, 并根据所述媒体资源信息预留所述请求协助终端 和所述协助提供终端二者之间的媒体通道资源;
通道建立模块, 用于在媒体通道资源预留成功后, 和对方终端根据预 留的媒体通道资源建立媒体通道;
远程模块, 用于通过所述媒体通道定期请求所述对方终端提供变化的 桌面数据或者定期向所述对方终端提供变化的桌面数据。
10、 根据权利要求 9所述的终端, 其特征在于,
所述交换处理模块, 具体用于判断本终端是否均具备点对点远程协助 能力, 当确认本终端和对方终端均具备点对点远程协助能力时, 使用 SIP 协议和 SDP协议和对方终端通用应用服务器交换媒体资源信息, 并根据所 述媒体资源信息预留所述请求协助终端和所述协助提供终端二者之间的媒 体通道资源。
PCT/CN2010/074269 2010-04-14 2010-06-22 Ip多媒体子系统中的点对点远程协助方法、系统及终端 WO2011127690A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010146259.9A CN101815098B (zh) 2010-04-14 2010-04-14 Ip多媒体子系统中的点对点远程协助方法、系统及终端
CN201010146259.9 2010-04-14

Publications (1)

Publication Number Publication Date
WO2011127690A1 true WO2011127690A1 (zh) 2011-10-20

Family

ID=42622213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/074269 WO2011127690A1 (zh) 2010-04-14 2010-06-22 Ip多媒体子系统中的点对点远程协助方法、系统及终端

Country Status (2)

Country Link
CN (1) CN101815098B (zh)
WO (1) WO2011127690A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110719255A (zh) * 2019-09-04 2020-01-21 西安交大捷普网络科技有限公司 基于ssh协议的协同运维方法与系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101815098B (zh) * 2010-04-14 2014-04-30 中兴通讯股份有限公司 Ip多媒体子系统中的点对点远程协助方法、系统及终端
CN102905250B (zh) * 2011-07-27 2015-08-12 三星电子(中国)研发中心 移动终端间远程协助的方法、系统及装置
CN106792798B (zh) * 2016-11-28 2020-09-11 北京奇虎科技有限公司 移动终端远程协助的连线探测方法及装置
CN113726895B (zh) * 2021-08-31 2023-08-25 广州艾美网络科技有限公司 文件传输方法、装置及网络ktv系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101180852A (zh) * 2005-05-23 2008-05-14 西门子股份有限公司 经由ip多媒体子系统ims的ip链路远程管理机器的方法和系统
WO2009038506A1 (en) * 2007-09-17 2009-03-26 Telefonaktiebolaget Lm Ericsson (Publ) A method and arrangement of a multimedia gateway and communication terminals
CN101616186A (zh) * 2009-07-14 2009-12-30 中兴通讯股份有限公司 基于ip多媒体子系统的远程协助实现方法、装置及系统
CN101815098A (zh) * 2010-04-14 2010-08-25 中兴通讯股份有限公司 Ip多媒体子系统中的点对点远程协助方法、系统及终端

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101237327A (zh) * 2007-02-01 2008-08-06 北京帮助在线信息技术有限公司 一种在线帮助平台系统及其实现方法
CN101400149A (zh) * 2007-09-27 2009-04-01 中兴通讯股份有限公司 一种移动终端实现远程协助的系统和方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101180852A (zh) * 2005-05-23 2008-05-14 西门子股份有限公司 经由ip多媒体子系统ims的ip链路远程管理机器的方法和系统
WO2009038506A1 (en) * 2007-09-17 2009-03-26 Telefonaktiebolaget Lm Ericsson (Publ) A method and arrangement of a multimedia gateway and communication terminals
CN101616186A (zh) * 2009-07-14 2009-12-30 中兴通讯股份有限公司 基于ip多媒体子系统的远程协助实现方法、装置及系统
CN101815098A (zh) * 2010-04-14 2010-08-25 中兴通讯股份有限公司 Ip多媒体子系统中的点对点远程协助方法、系统及终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110719255A (zh) * 2019-09-04 2020-01-21 西安交大捷普网络科技有限公司 基于ssh协议的协同运维方法与系统

Also Published As

Publication number Publication date
CN101815098B (zh) 2014-04-30
CN101815098A (zh) 2010-08-25

Similar Documents

Publication Publication Date Title
US11431774B2 (en) Method, user equipment and application server for adding media stream of multimedia session
JP4605819B2 (ja) 機械を、ipリンクを介して遠隔管理するための方法およびシステム
KR101430442B1 (ko) 네트워크 기반의 능력 관리를 통한 세션 업데이트 방법 및단말
US20100146142A1 (en) Method, application server and user equipment for transferring media streams of multimedia session
US8036659B2 (en) Method for requesting an unregistered UE to perform registration in the IMS
RU2009101407A (ru) Способ, система и устройство для получения доступа к сети
WO2008089642A1 (fr) Procédé, dispositif et système pour le transfert d'informations de terminal dans un sous-système multimédia
WO2009025508A2 (en) System and method for providing location information
WO2011127690A1 (zh) Ip多媒体子系统中的点对点远程协助方法、系统及终端
JP2009296138A (ja) 通信システム
JP2010521878A (ja) メディア非依存ハンドオーバのための方法および装置
WO2009149667A1 (zh) 被叫接入的方法、装置和系统
WO2007079647A1 (fr) Procede, appareil et systeme de sauvegarde en reseau d'un systeme d'application sip
WO2011054257A1 (zh) 一种优化媒体路径的建立方法和实现该方法的信令网关
WO2014117506A1 (zh) 一种向群组成员发送多媒体消息的方法及设备
JP2007082196A (ja) コネクションを確立し維持する方法
JP2007233803A (ja) Http対応端末をsip対応サーバに接続する代理接続方法、プロキシサーバ及びプログラム
JP5272702B2 (ja) 移動網システム及びガイダンスメッセージ提供方法
EP1871067B1 (en) A calling method between the terminals of packet multimedia communication system
JP2006345231A (ja) Sip−alg方法
JP2010011120A (ja) Uni接続におけるnat変換装置およびnat変換プログラム
JP5343551B2 (ja) 移動網システム及びガイダンスメッセージ提供方法
WO2011026291A1 (zh) 一种实现媒体切换的方法及系统及用户网关
WO2009127138A1 (zh) 通信请求的发送方法和装置
WO2011006329A1 (zh) 基于ip多媒体子系统的远程协助实现方法、装置及系统

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: 10849699

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10849699

Country of ref document: EP

Kind code of ref document: A1